High Parasite Prevalence Research Articles

PSIV-16 The role of veterinary services on nutrition schemes, management, and health practices for sheep and goats in rural Ngaka Modiri Molema District Municipality, North West Province of South Africa

Abstract Poverty is a feature of rural households, and as a result rural people usually adopt low-input agriculture to alleviate poverty. Many households in Ngaka Modiri Molema District keep animals, particularly sheep and goats, for a variety of reasons, including as source of income, milk, and meat. However, they lack the management skills that are necessary for their livestock to increase their productivity. Inadequate animal management, including poor feeding and housing standards and poor application of proper animal health procedures are compounded by a lack of agricultural experience and low-input farming methods. In addition, poor animal nutrition, sickness and a high prevalence of parasites, and low animal production output further contribute to low overall productivity. Therefore, support offered by the veterinary services, and the impact these interventions have on sheep and goat farming among rural farmers need to be investigated. The present study will seek to describe the feeding schemes and management practices adopted by sheep and goat owners, as well as the role of veterinary and extension services in the development of such practices. Health care provided to sheep and goat farmers by the veterinary services will also be determined. A survey will be conducted in Ngaka Modiri Molema District Municipality, a rural area in North West Province of South Africa. The study population will consist of all farmers, both female and male, rearing sheep and goats. Animal and farm information level data and general farm management practices will be collected via a questionnaire survey. Using the Statistical Kit for STATA (version 16), data will be examined by computing frequency, percentages, and proportions based on the characteristics of the sample population. This survey will help to provide opportunities for resource-poor farmers in rural areas to develop their flocks.

The Prevalence of Infection with Gastrointestinal Helminths in Free-Range Poultry of Zabol, Iran.

As an ecological and ethical method employed for poultry farming, free-range chicken keeping is growing and is important in fostering rural farmers' livelihoods and community prosperity. This study aimed to determine the nature and prevalence of helminth infections in native poultry in Zabol, Iran. Between 2022 and 2023, 160 chickens were acquired and slaughtered ethically, and then their gastrointestinal tracts were taken and formalin preserved in Zabol, Iran. The parasites were isolated from gastrointestinal mucus in the laboratory and characterized using a microscope and specific methods such as Acetocarmine staining. Among 160 dissected birds, 92 (57.5%) were presented with gastrointestinal parasites, with 64 (40%) containing cestodes, 16 (10%) containing nematodes, and 12 (7.5%) infected by both. Observations were made of seven different species. Ascaridia galli (A. galli) (10%), Subulura brumpti (7.5%), and Heterakis gallinarum (3.12%) represent the three main nematode species. While Raillietina tetragona (R. tetragona) (33.12%) was the most prevalent cestode, R. echinobothrida (6.25%), R. magninumida (5%), and Cotugnia digonopora (3.12%) were less common. The study revealed that free-range chickens in the arid Zabol region had a high prevalence of gastrointestinal parasites. There is a strong correlation between chicken foraging behavior and exposure to contaminated soil, with certain nematodes and cestodes constituting the most prevalent, negatively affecting bird growth, productivity, and health. Therefore, improving poultry welfare by applying parasite control measures and implementing appropriate management strategies is essential.

Detecting Gaps in Knowledge: The Case of the Anisakis in Northwestern Spain

In the marine environment, fish parasites are present in most seafood species. The most common are nematodes of the genus Anisakis, which can parasitize human tissues, causing anisakiasis and allergies—in some cases with a strong reaction, such as anaphylactic shock. This happens when people ingest live or dead larvae present in the muscles or viscera of a wide range of fish and cephalopods. Consumer education has been positioned as one of the most effective alternatives for its prevention. This study, carried out in Asturias (northwest Spain), sought to identify the seafood products that present the greatest risk of anisakiasis for consumers, taking into account their consumption, the prevalence of Anisakis, and consumer knowledge about this parasitosis. In the results, hake (Merluccius merluccius) and cod (Gadus morhua), frequently consumed in the region and with high parasite prevalence, do not pose a great risk because they are consumed when well cooked. Instead, sardine (Sardina pilchardus), highly consumed and less parasitized, and anchovy (Engraulis encrasicolus), highly parasitized and less consumed, would exhibit a medium risk. Young participants know more about the risks of anisakiasis from raw seafood. The gaps detected in the knowledge about the ability of temperature treatments to eliminate parasites, especially in allergic people, must be addressed for better prevention. We suggest campaigns adapted to the population sectors.

High Frequency of Deletions in the pfhrp2 and pfhrp3 Genes of Plasmodium falciparum in the Middle Rio Negro Region of the Brazilian Amazon.

Several countries are reporting natural populations of P. falciparum with deletions in the pfhrp2/3 genes that can lead to false-negative results in rapid diagnostic tests. To investigate the prevalence of deletion in the pfhrp2/3 genes in the Rio Negro basin in the Brazilian Amazon and identify whether there is clinical differentiation between individuals infected by these parasites, clinical samples collected from 2003 to 2016 were analyzed from symptomatic and asymptomatic P. falciparum-infected individuals. The molecular deletion of pfhrp2 and pfhrp3 genes was evaluated using the protocols recommended by the WHO. From 82 samples used, 28 (34.2%) had a single deletion in pfhrp2, 19 (23.2%) had a single deletion in pfhrp3, 15 (18.3%) had a double deletion (pfhrp2/3), and 20 (24.4%) did not have a deletion in either gene. In total, 29.3% of individuals had an asymptomatic plasmodial infection and were 3.64 times more likely to have parasites with a double deletion (pfhrp2/3) than patients with clinical malaria (p = 0.02). The high prevalence of parasites with pfhrp2/3 deletions shows the need to implement a surveillance program in this area. Deletions in parasites may be associated with the clinical pattern of the disease in this area. More studies must be carried out to elucidate these findings.

Zoonotic parasite contamination of some green, leafy and spicy vegetables sold in major markets of Makurdi metropolis, Benue state

Consumption of contaminated vegetables can result in parasite ingestion with subsequent health problems. The spread of zoonotic parasites through contaminated vegetables is a complicated problem that requires attention to ensure food safety and protect public health. This study investigated the zoonotic parasitic contamination of some green, leafy, and spicy vegetables sold in Makurdi metropolis, Benue State. A cross-sectional study was designed in which four hundred green, leafy, and spicy vegetables consisting of five different vegetables, were collected from five markets in Makurdi town, Benue state. Sediments obtained by washing the vegetables with normal saline were centrifuged at 1500 rpm for five minutes before being subjected to flotation, sedimentation, and modified Ziehl-Neelsen techniques, and viewed under the microscope at various magnifications. The overall prevalence of zoonotic parasites was 59.75%. Strongyloides spp. larvae (40.5%), Cryptosporidium spp. Oocyst (0.5%), Balantidium coli cyst and trophozoite (7%), Ascaris spp (5.75%), Taenia spp. (9%), Strongyle ova (4.5%), and Giardia lamblia cyst (1.5%) were identified. Results showed a significant relationship between vegetable type and parasite contamination of vegetables (p < 0.05), but no significant relationship between market location and parasite contamination (p > 0.05). The high prevalence of zoonotic parasites observed in this study highlights the potential health risks associated with consuming contaminated vegetables. The study recommends public enlightenment of vegetable sellers and consumers in Makurdi on the importance of hand hygiene and safe handling of vegetables to prevent exposure to pathogenic microorganisms.

Prevalence of Gastrointestinal Parasites of African Catfish (Clarias gariepinus) from River Nasarawa, Nasarawa State, Nigeria

Fish and fish products are significant sources of nutrients for humans. Parasites of fish are of concern since they often produce a weakening of the host’s immunity thereby increasing susceptibility to secondary infections. This study was conducted with aimed to examine the prevalence of gastrointestinal parasites infecting fish. Field study was conducted during the period from September to November 2022. A total of 200 fish samples (Clarias gariepinus) were examined for the presence of gastrointestinal parasites. Result show that, total number of fishes infected 60(30.0%) out of which 26(26.26%) males and 34(33.66) female. Two helminths one each from Cestode and Nematode were isolated from the infected fishes. The Cestode and its prevalence were Diphylobothrium latum (5%) and nematode Procamallanus spp. (3.33%). The protozoa recovered included: Hexamita spp., Protoopalina spp. and Microsporidia with 60.00%, 23.33% and 18.34% respectively. The majority of the parasites were found in the intestine. Fish specimens that were lighter in weight 10 -200g had less infection (12.5%) but those found with parasites weighed between 201-400g (42%). There was no significant difference (P>0.05) in the infection between male and female Clarias gariepinus and with age on the prevalence and intensity of the gastrointestinal parasite. Wild fish (Clarias gariepinus) in River Nasarawa have a high prevalence of intestinal parasites, therefore it is recommended to avoid open defecation that finally is washed down to rivers and streams hence affecting the aquatic organisms and to properly cook wild fish obtained from River Nasarawa before consumption for safety.

Prevalence of Gastrointestinal Parasites among Student of Nasarawa State University, Keffi Nasarawa State, Nigeria

Gastrointestinal parasites are significant agents of intestinal infection with public health implications worldwide. This study aimed to ascertain intestinal parasites among students of Nasarawa State University, Keffi, Nasarawa State. A total of 138 Stool samples were collected from students in hostels and off campus and examined using the direct wet preparation and formol-ether concentration techniques. The overall prevalence of 18.84% was recorded with a higher prevalence of gastrointestinal parasites in samples collected from male subjects (23.61%) compared to the female individuals (13.63%) however, there was no statically significant difference (P>0.05) in prevalence between males and females subjects. The intestinal parasites species identified and their respective prevalence were: two species of nematodes; hookworm (26.92%) and Ascaris lumbricoides (46.15), a species of cestode- Taenia saginata (15.38%) and trematode- Schistosoma mansoni (11.58%). Gastrointestinal parasitic infection was higher in male hostel (50.00%) followed by female hostel (13.46%) and the least was recorded from the student village that is those students who live off campus (11.58%) although statistically, there is no significant difference between the location (P>0.05). The study showed that there is a high prevalence of gastrointestinal parasites in the study area (especially male hostel) therefore, there is a need to encourage adequate personal hygiene and sanitation. Also, further study should be carried out on the impact of parasitic infection on academic performance of the students.

High prevalence and risk of malaria among asymptomatic individuals from villages with high prevalence of artemisinin partial resistance in Kyerwa district of Kagera region, north-western Tanzania

BackgroundAlthough Tanzania adopted and has been implementing effective interventions to control and eventually eliminate malaria, the disease is still a leading public health problem, and the country experiences heterogeneous transmission. Recent studies reported the emergence of parasites with artemisinin partial resistance (ART-R) in Kagera region with high prevalence (> 10.0%) in two districts of Karagwe and Kyerwa. This study assessed the prevalence and predictors/risk of malaria infections among asymptomatic individuals living in a hyperendemic area where ART-R has emerged in Kyerwa District of Kagera region, north-western Tanzania.MethodsThis was a community-based cross-sectional survey which was conducted in July and August 2023 and involved individuals aged ≥ 6 months from five villages in Kyerwa district. Demographic, anthropometric, clinical, parasitological, type of house inhabited and socio-economic status (SES) data were collected using electronic capture tools run on Open Data Kit (ODK) software. Predictors/risks of malaria infections were determined by univariate and multivariate logistic regression, and the results were presented as crude (cORs) and adjusted odds ratios (aORs), with 95% confidence intervals (CIs).ResultsOverall, 4454 individuals were tested using rapid diagnostic tests (RDTs), and 1979 (44.4%) had positive results. The prevalence of malaria infections ranged from 14.4% to 68.5% and varied significantly among the villages (p < 0.001). The prevalence and odds of infections were significantly higher in males (aOR = 1.28, 95% CI 1.08 –1.51, p = 0.003), school children (aged 5–≤10 years (aOR = 3.88, 95% CI 3.07–4.91, p < 0.001) and 10–≤15 years (aOR = 4.06, 95% CI 3.22–5.13, p < 0.001)) and among individuals who were not using bed nets (aOR = 1.22, 95% CI 1.03–1.46, p = 0.024). The odds of malaria infections were also higher in individuals with lower SES (aOR = 1.42, 95% CI 1.17–1.72, p < 0.001), and living in houses without windows (aOR = 2.08, 95% CI 1.46–2.96, p < 0.001), partially open (aOR = 1.33, 95% CI 1.11–1.58, p = 0.002) or fully open windows (aOR = 1.30, 95%CI 1.05–1.61, p = 0.015).ConclusionThe five villages had a high prevalence of malaria infections and heterogeneity at micro-geographic levels. Groups with higher odds of malaria infections included school children, males, and individuals with low SES, living in poorly constructed houses or non-bed net users. These are important baseline data from an area with high prevalence of parasites with ART-R and will be useful in planning interventions for these groups, and in future studies to monitor the trends and potential spread of such parasites, and in designing a response to ART-R.

High parasite prevalence in an ecosystem engineer correlated with both local- and landscape-level factors.

Spatial variation in parasitic infection may have many physical and biological drivers. Uncovering these drivers may be especially important for parasites of ecosystem engineers because the engineers are foundational to their communities. Oysters are an important coastal ecosystem engineer that have declined drastically worldwide, in part due to enhanced cases of lethal oyster diseases, such as Dermo and MSX, caused by the protozoan parasites Perkinsus marinus and Haplosporidium nelsoni, respectively. Besides water quality and hydrodynamics, there is little information on how other variables influence the prevalence and intensity of these pathogens in oysters across a regional scale. To examine drivers of spatial variation in these oyster parasites-including host size, local reef properties, and landscape properties-we sampled 24 reefs systematically spread along the coast of Georgia, USA. Across sites, we found universally high prevalence of oysters with at least one of these parasites (91.02% ± 8.89, mean ± SD). Not only are high levels of parasite prevalence potentially problematic for a pivotal ecosystem engineer, but also low spatial variability may limit the explanatory power of variables across a regional scale. Our statistical models explained between 18 and 42% of the variation in spatial patterns of prevalence and intensity of these microparasites. Interestingly, landscape context was a positive predictor of P. marinus, but a negative predictor of H. nelsoni. Overall, our findings suggest that factors driving parasite prevalence and intensity operate across multiple spatial scales, and the same factor can both facilitate and hinder different parasites within the same host species.

Burden and factors influencing intestinal parasitic infections among food handlers in Gondar City, Northwest Ethiopia.

Intestinal parasitic infections pose significant global health challenges, particularly in developing countries. Asymptomatic infections often present a considerable burden with food handlers serving as potential carriers. In Ethiopia, the prevalence of these parasites varies across regions, and accurate data in the study area is lacking. Therefore, this study aimed to investigate the prevalence of intestinal parasites among food handlers working in hotels and restaurants in Gondar City, Northwest Ethiopia. A cross-sectional study collected stool samples from food handlers alongside a structured questionnaire gathering socio-demographic and hygiene practice information. Stool specimens were screened for intestinal parasites using direct wet mount and formol-ether concentration techniques. The collected data were checked for completeness, entered into EpiData software version 3.1, and exported to SPSS version 20 for analysis. A multivariable logistic regression analysis was deemed statistically significant if the p-value was less than 0.05. A total of 257 food handlers working in hotels and restaurants in Gondar City participated in the study. Of these, 33.5% (86/257) were found positive for one or more intestinal parasites, with a 95% confidence interval (CI) of 28.0-39.5%. The study identified nine types of intestinal parasites, with E. histolytica/dispar (8.2%, 21/257) and Ascaris lumbricoides (6.6%, 17/257) being the predominant parasites, followed by hookworm (3.5%, 9/257) and S. mansoni (2.3%, 6/257). The prevalence of mixed infections was 9.3% (24/257). A significant association was observed between intestinal parasitic infection and the educational level of food handlers. In this study, a high prevalence of intestinal parasites was detected indicating poor hygiene practices of the food handlers at the study site. Even the prevalence of mixed infections was high. Regular training, strict adherence to personal hygiene and food-handling practices, and routine inspections and medical checkups for food handlers are crucial.

Distribution of Parasitic Infections among Pupils in Kwara State, Nigeria

Background: Parasitic infections pose a significant health burden among school-age children in Nigeria. Aim and Objective: This study aimed to investigate the distribution of parasitic infections among pupils in Kwara State, Nigeria. Materials and Methods: A total of 638 pupils from various primary schools in Kwara Central, Kwara South, and Kwara North senatorial districts were included in the study. Stool, blood, and urine samples were collected from each participant, and appropriate preservation methods were employed. Parasite identification was carried out using microscopy, staining techniques, and concentration methods described in previous studies. Results: The results revealed an overall prevalence of 19.4% among the pupils, with 80.6% found to be uninfected. The most common parasitic infections were Ascaris lumbricoides (55.6%), Schistosoma mansoni (11.2%), Plasmodium (10.5%), Entamoeba histolytica (8.9%), Hookworm (8.1%), Fasciola gigantica (4.0%), and Schistosoma haematobium (1.6%). Further analysis focused on the age distribution of parasitic infections. Among pupils aged 1–5 years, Plasmodium infection had a prevalence of 23.1%. In the 6–10 years age group, A. lumbricoides (59.4%), S. mansoni (74%), E. histolytica (45.5%), Hookworm (30.0%), F. gigantica (20%), and Plasmodium (61.5%) were prevalent. Among pupils aged 11–15 years, A. lumbricoides (40.6%), S. mansoni (28.6%), E. histolytica (54.5%), Hookworm (70.0%), F. gigantica (60.0%), Plasmodium (15.4%), and S. haematobium (1.6%) were observed. Pupils aged 16–20 years showed a lower prevalence of parasitic infections, with F. gigantica (20%) being the only detected parasite. Conclusion: The findings highlight the varying distribution of parasitic infections among different age groups, emphasizing the need for age-specific interventions. The high prevalence of certain parasites, such as A. lumbricoides, S. mansoni, and Plasmodium, indicates the importance of implementing targeted deworming programs, improved sanitation, hygiene practices, and malaria prevention strategies. These measures can effectively reduce the burden of parasitic infections and promote the health and well-being of pupils in Kwara State, Nigeria.

High prevalence of haemosporidian parasites in Eurasian jays

Avian haemosporidians are vector-borne parasites, infecting a great variety of birds. The order Passeriformes has the highest average infection probability; nevertheless, some common species of Passeriformes have been rather poorly studied. We investigated haemosporidians in one such species, the Eurasian jay Garrulus glandarius (Corvidae), from a forest population in Hesse, Central Germany. All individuals were infected with at least one haemosporidian genus (overall prevalence: 100%). The most common infection pattern was a mixed Haemoproteus and Leucocytozoon infection, whereas no Plasmodium infection was detected. Results on lineage diversity indicate a rather pronounced host-specificity of Haemoproteus and Leucocytozoon lineages infecting birds of the family Corvidae.

Assessment of Welfare in Transhumance Yak Hybrids (Chauris) in the Lower Himalayan Region of Nepal

In order to develop a yak/chauri-specific welfare assessment protocol, we sent a set of 31 potential welfare measures to 120 Nepalese experts and asked them to identify the measures that they thought would be useful and propose additional useful measures. Eighty-three experts responded, with 13 measures being identified by &gt;50% of respondents as likely to be useful. These thirteen measures plus one new measure (hematology) were included in an assessment protocol that was tested in the second phase of this study in five chauri herds in two districts in northern Nepal. Animal-based evaluations along with sampling for mastitis, intestinal parasites, and hematology were undertaken during or just after morning milking. Resource- and record-based measures were assessed through structured interviews, with verifications on-site where possible. No chauris exhibited poor body conditions, skin injuries, significant locomotion issues, or significant subclinical mastitis. Fecal testing suggested a high prevalence of intestinal parasites at the herd level, while blood testing suggested no evidence of hematological abnormalities. However, for both results, we need more data to use these effectively as measures of welfare. The resource-based assessment revealed significant challenges across all resources, and veterinary services were reported as being inadequate. A high estimated annual mortality rate (10–21%) needs further investigation. This protocol provided a useful start towards developing a welfare assessment protocol for yak/chauri and identified issues that need addressing to optimize chauri welfare.

Metabarcoding of protozoa and helminth in black-necked cranes: a high prevalence of parasites and free-living amoebae.

Parasites and free-living amoebae (FLA) are common pathogens that pose threats to wildlife and humans. The black-necked crane (Grus nigricollis) is a near-threatened species and there is a shortage of research on its parasite diversity. Our study aimed to use noninvasive methods to detect intestinal parasites and pathogenic FLA in G. nigricollis using high-throughput sequencing (HTS) based on the 18S rDNA V9 region. A total of 38 fresh fecal samples were collected in Dashanbao, China, during the overwintering period (early-, middle I-, middle II-, and late-winter). Based on the 18S data, eight genera of parasites were identified, including three protozoan parasites: Eimeria sp. (92.1%) was the dominant parasite, followed by Tetratrichomonas sp. (36.8%) and Theileria sp. (2.6%). Five genera of helminths were found: Echinostoma sp. (100%), Posthodiplostomum sp. (50.0%), Euryhelmis sp. (26.3%), Eucoleus sp. (50.0%), and Halomonhystera sp. (2.6%). Additionally, eight genera of FLA were detected, including the known pathogens Acanthamoeba spp. (n=13) and Allovahlkampfia spp. (n=3). Specific PCRs were used to further identify the species of some parasites and FLA. Furthermore, the 18S data indicated significant changes in the relative abundance and genus diversity of the protozoan parasites and FLA among the four periods. These results underscore the importance of long-term monitoring of pathogens in black-necked cranes to protect this near-endangered species.

Prevalence of Gastrointestinal Tract Parasites in Dairy Cattle in Tehsil Gagra District Buner Khyber Pakhtunkhwa, Pakistan

Background: Gastrointestinal (GI) parasites pose a significant threat to dairy cattle health, affecting both animal welfare and agricultural productivity. In regions like Tehsil Gagra, District Buner, Khyber Pakhtunkhwa, Pakistan, where dairy farming is a crucial part of the economy, understanding the prevalence and types of these parasites is essential. The potential zoonotic impact of these parasites also raises concerns for human healthcare, emphasizing the importance of a One Health approach. Objective: This study aimed to determine the prevalence and types of gastrointestinal parasites in dairy cattle in Tehsil Gagra, District Buner, and to understand their implications for animal health, agricultural practices, and potential zoonotic risks to human health. Methods: A comprehensive analysis was conducted from July 2021 to July 2022. A total of 150 fecal samples from dairy cattle were collected and examined at the Veterinary Research and Disease Investigation Center, District Swat, and the Department of Zoology, University of Buner. The samples were tested using direct smear, sedimentation, and sugar flotation methods. The study also considered environmental factors and seasonal variations in its analysis. Results: Of the 150 samples examined, 99 (66%) were positive for gastrointestinal parasites. Nematodes were the most prevalent (51.33%), followed by Protozoa (12%), Trematodes (2%), and Cestodes (0.67%). The most common parasitic species identified were Trichostrongylus (24.67%), Ostertagia ostertagi (22.67%), and Eimeria bovis (8%). Area-wise, Rega showed the highest prevalence at 80%, while Gagra recorded 46.67%. Conclusion: The study revealed a high prevalence of GI parasites in dairy cattle in Tehsil Gagra, District Buner, emphasizing the need for improved veterinary care and farm management practices. The results highlight the importance of regular parasite control measures and suggest potential zoonotic risks, underscoring the necessity for integrated animal and human health approaches.

Intestinal Protozoans among HIV Patients in a Rural Setting, Southern Nigeria

Opportunistic parasitic protozoan infections in HIV infected patients remain a worldwide public health concern. A cross sectional study on HIV patients was carried out in some parts of Imo State with a view of assessing the prevalence of intestinal protozoan parasites. Stool samples were collected and analysed applying standard techniques. Overall, four species of protozoan parasites were isolated namely, C.parvum, E.histolytica, G.lamblia and Ent. coli. Total prevalence is highest (52.2%) amongst the age group of ≤27 years, followed by 45-48years(27.8%) while the least prevalence(11.8%) is recorded for the age group of 49 years and above. More female (26.3%) were infected than male (25.4%). Significant association between age and protozoan prevalencewas noted(p-value=0.007; X2=32.998a, df=16). Further analysis selecting Cramer’s V which is the measure of association based on chi-square shows a weak dependence between age and parasite prevalence (Cramer’s V-value = 0.286). Pearson correlation shows a positive, weak (R=0.170; sig.=0.089c) relationship between age and protozoan parasite prevalence. Test of association between gender and intestinal protozoan parasites shows a non-significant association(p=0.280;X2=5.069a), weak dependence(Cramer’s V-value = 0.280) and a negative, weak relationship between gender and parasite prevalence(R=-0.042; sig=0.674c). Subjects with CD4count &lt;200µ/ml recorded the highest(40.0%) prevalence of intestinal protozoan parasite while 200-349µ/ml recorded the least prevalence(4.0%).Significant association exists between CD4 count and parasite prevalence(x2=53.9a, df=12,p=0.001);then Cramer’s v test shows a medium-strong dependence. High prevalence (37.0%) of intestinal protozoan parasites is recorded for subjects not on HAART while low prevalence (12.8%) is recorded for those on HAART; with Significant association (x2=16.157a, df=4, p=0.003) and medium-strong dependence (Cramer’s v =0.40).The result of this study shows that intestinal parasites are of public health concern among immunocompromised individuals and calls for urgent attention of relevant stakeholders

Prevalence of Parasites in Fish from The Pelagic and Benthic Zones

The present research is a comparative study on the prevalence of parasites in marine finfish among the two major marine zones; namely the pelagic zone and benthic zone. The objectives of the present study were to investigate the parasite prevalence in both zones, as well as to determine the effect of differing marine zones regarding the presence of parasites in fish. A total of 30 individual fish occurring in pelagic and benthic zones were randomly selected from three different fishmongers at a wet market in Bintulu, Sarawak. Both the gill and stomach content of the samples were examined to detect the presence of parasites. Nematodes and trematodes were observed in the intestinal tract of the fish, Cymothoa exigua was found attached to the fish tongue, and monogenean parasites were also detected on the gills. The prevalence of the parasite was roughly equal in Setipinna breviceps, Ilisha megaloptera, and Selaroides leptolepis. The highest prevalence of parasites (87.50%) from fish in the benthic zone based on fish size was for fish measuring between 20.1 - 30.00 cm in total length (P-value=0.3778), whereas for pelagic fish, the highest prevalence of parasites (100%) in fish measurements of 30.1 – 40.0 cm in total length (P-value=0.0044). A major factor for the diversity of marine fish parasites occurring in the different zones is the difference in feeding behavior of the hosts and depth distribution which resulted in low or high rates of parasite infestation.

Intestinal parasites in dogs from a Guarani indigenous village in Paraná, Brazil

Animals can serve as reservoirs for various zoonotic diseases, with domestic animals standing out as potential sources of contamination and the spread of parasite eggs and cysts due to their close and constant contact with humans. Indigenous populations culturally keep canines in their homes, as they are seen as "man's best friend" and guardians against nocturnal creatures, symbolizing security and companionship. However, canines frequently become infected with intestinal protozoa and helminth parasites, therefore, the objective of this research was to establish the parasitological profile of canines in the Guarani indigenous population, specifically in the Santa Rosa do Ocoy Village in western Paraná, and correlate with human population risk of infection. Fresh fecal samples were collected, which the animals defecated spontaneously without the need for direct contact. Macroscopic analyses were performed, and then the samples were subjected to parasitological analysis using the ether-formaline centrifugal-flotation and the flotation in zinc sulfate. It was observed that more prevalente was Ancylostomatides and Toxocara canis, Giardia duodenalis, Coccidia, Amoebas, and Trichuris was too observed. In addition to the high prevalence of parasites of the genus Toxocara and hookworms, which can penetrate the human skin and cause cutaneous larva migrans (creeping eruption), the presence of protozoa such as Giardia duodenalis, an importante diarrea infectious agente in humans, was also identified.

Parasitic helminths of alien invasive anurans in Butuan City, Northeastern Mindanao, Philippines.

This study aimed to identify the helminth parasites of invasive anuran species in selected barangays in Butuan City, Philippines. In urbanized areas, invasive species dominate anuran diversity, and one of the primary threats they pose to native wildlife is the transmission of diseases and parasites. Out of the 91 collected individuals of invasive anuran species, Rhinella marina was the most abundant (88 %), followed by Hoplobatrachus rugulosus (12 %) and Kaloula pulchra (3 %). The study identified five species of parasites, with Spirometra sp. being the most prevalent (17.58 %), followed by Echinostoma sp. (16.5 %), Rhabdias bufonis (14.3 %), Cosmocerca sp. (6.6 %), and Strongyloides stercoralis (3.30 %), respectively. Spirometra sp. also had the highest intensity (7.67), followed by Cosmocerca sp. (5), Strongyloides stercoralis (3.33), Rhabdias bufonis (3.30), and Echinostoma sp. (2.73). This parasitological survey revealed that H. rugulosus had the highest prevalence and infection of parasites, and residential areas had the highest parasite prevalence among the habitat types. Adult hosts were found to harbor a higher prevalence and intensity, and male hosts had a higher prevalence. The results highlight the high risk of parasite transmission from anurans to other animals and emphasize the need for the community to control the population of invasive anuran species for the safety of native anurans and to prevent zoonotic transmission to other animals and humans.

Diversity, prevalence and risk factors associated to gastrointestinal tract parasites in wild and domestic animals from Pakistan.

The gastrointestinal tract (GIT) of animals contains various helminth parasites, responsible for subclinical and clinical parasitism. The health situation of animals is seriously affected by these parasites and leads massive financial losses for the livestock trade. The present study was conducted to determine the prevalence and associated risk factors of GIT parasites in small and large ruminants of Mardan district and zoo animals of Golden Life Safari Park Khyber Pakhtunkhwa. A total of 419 fecal samples were collected including 117 from goats, 110 from cattle, 80 from sheep, 66 from buffaloes, 40 from birds, four from deer, and two from leopards. The fecal samples were subjected to sedimentation and floatation to identify parasite eggs. Of a total of 419 fecal samples, 215 (51.31%) were found positive for GIT parasites eggs. The prevalence of GIT parasites was high in sheep (65%), followed by goats (62.39%), cattle (42.70%), and buffaloes (37.87%). In birds, GIT parasite eggs were identified in 11 (45.83%) and 7 (43.75%) fecal samples of Pheasant and Peacock, respectively. However, an absence of infection was noted in fecal samples from deer and leopards. Eggs of GIT Parasites belonging to one superfamily and four different genera were recognized in fecal samples of domestic animals and buffaloes, which were Trichostrongyloidea (19.81%), Strongyloides (9.31%), Trichuris (7.77%), Monezia (6.44%), and Fasciola (4.53%). For bird, the coccidia group comprises the highest representation of parasites (2.63%), followed by the Trichuris genus (1.67%). Settlement, management system, anthelminthic medications and body condition score were significantly associated with the occurrence of GIT parasites in feces (P < 0.05). Animals from rural settlements, rearing under poor management systems, with thin (poor) body condition and under warmed were more affected by GIT parasites. The diversity and the high prevalence of GIT parasites reported in this study highlights the urgent need for intervention through treatment and modification of management practices in the investigated areas of Pakistan.