Intensity Of Helminthiasis Research Articles

Helminth Infection among Children Living in an Urban Area in Tropical Countries: A Systematic Review

Background
 
 Neglected tropical diseases (NTDs) are a group of preventable and treatable diseases, in which soil-transmitted helminth (STH) infections are among the most common infections worldwide. Most affected are the children and this review aims to identify the prevalence, risk factors and impact of STH in an urban area. 
 
 Methodology
 
 This review was guiding using PRISMA review protocol incorporating the research question of “What is the prevalence, risk factors and impact of helminth infection among urban children in tropical countries?". The databases used in this review include SCOPUS, WEB OF SCIENCE, OVID MEDLINE and PUBMED. The articles used include observational and interventional studies conducted among children aged 18 years and less from 2010 to 2020. The main outcome measure was risk factors of STH infection seen in urban children includes social backgrounds, sanitation and policy.
 
 
 Results
 
 From the initial 973 articles found in the database searching, only 13 articles selected for qualitative synthesis after exclusion and screening for eligibility done. The overall prevalence of helminth infection among urban children ranges from 4.8-48.9%. The associated factor that influences helminth infection among children living in an urban area are age, male more common than female, low socioeconomic status, low parents’ education level, living in an urban slum or crowded area, low water quality and sanitation practice and poor hygiene practice. The deworming tablets consumption acts as protective factors for helminth infections. The medium haemoglobin value was significantly lower in helminth-infected children compared to uninfected children and the stunting, underweight as well as moderate acute malnutrition were attributable to helminth infections.
 
 
 Conclusion
 
 The prevalence and intensity of helminthiasis were heterogeneous among urban areas of developing countries, however, the endemicity is still high. Further efforts including healthy policies, continuous national deworming programmes and multi-sectoral partnership are required to reduce the prevalence of helminthiasis in the urban area.

Изучение динамики распространения гельминтозов в овцеводческих хозяйствах Азербайджана

The main purpose of the research work is to identify the prevalence of helminthiasis in private sheep-breeding farms of the Sheki, Zagatala and Oguz districts of the Republic of Azerbaijan. One of the urgent problems is the study of mixed invasions that cause damage to animal husbandry. Based on this, as a result of the investigations, the extensiveness and intensity of helminthiasis in sheep of different age groups were studied as a result of the examinations. Extensiveness of invasion: in Sheki district for moniesiasis — 26.6%, for fascioliasis — 20.8%, for dicroceliosis — 23.3%, in Zagatala district for moniesiasis — 21.6%, for fascioliasis — 15.8%, for dicroceliosis — 17.5%, in Oguz distirct for monieziasis — 30.8%, for fascioliasis — 25.8%, for dicroceliosis — 28.3% were identified during the scatological examinations conducted. Presence the intensity of invasion on average: in the Sheki district with Moniezia expansa — 2–6, Fasciola hepatica — 4–14, Dicrocoelium lanceatum — 7–21, in the Zagatala district with Moniezia expansa — 1–4, Fasciola hepatica — 3–11, Dicrocoelium lanceatum — 5–17, in the Oguz district with Moniezia expansa — 2–7, Fasciola hepatica — 5–18, Dicrocoelium lanceatum — 9–24 specimens were identified when examining during the autopsy.

Endo-Helminth Fauna of the Rainbow Lizard (Agama Agama)

This parasitological study was carried out between February and May 2019 to determine the prevalence and intensity of helminthiasis in the rainbow lizard (Agama agama) in Okrika, Rivers State, Nigeria. A total of one hundred and fifty-one (151) specimens made up of 93 males and 75 females were caught by a local netting system during the day and anaesthesized with chloroform. Samples were collected from two stations (Ogoloma-Ama and Oba-Ama). After dissection, the esophagus, stomach, small intestine, rectum, liver, lungs, urinary bladder, heart and body cavity were searched for helminths using conventional methods. Five species of helminths belonging to Nematoda - Strongyluris brevicaudata, Parapharyngodon awokoyai, encysted Ascaridida larva, Cestoda - Oochoristica sp. and Trematoda - Mesocoelium spp - were recovered from infected lizards. Helminths infected one hundred and twenty-three (123) (82%) of the lizards. In Oba-Ama, forty-five (45) (76.3%) out of 59 and in Ogoloma-Ama, seventy-eight (78) (84.8%) out of 92 were infected with helminths. By abundance, in both locations, the males were more infected than their female counterparts with a prevalence of 51(93%) and 72(75%) (P<0.05), respectively. This study has revealed the helminth parasites infecting the agamid lizard of Rivers State, Nigeria. It has also shown some unidentified species of Mesocoelium and Oochoristica sp. Additionally the trapping system used was also found to be effective and efficient.

Prevalance and Intensity of Helminthiasis in Gastrointestinal Tractus of Goat At Kwanyar Sub-District, Bangkalan District

This study aims to determine the prevalence and intensity of helminthiasis in gastrointestinal tract of goat at Kwanyar Sub-District, Bangkalan District. The study was conducted in August-October 2018 with 100 samples of stool examination in the laboratory of Helmintology, Division of Veterinary Parasitology, Faculty of Veterinary Medicine, Universitas Airlangga. The results were found various worm eggs such as Oesophagustomum sp., Strongyloides sp., Haemonchus sp., Trichuris sp., and Chabertia sp. Moreover, the prevalence of gastrointestinal helminthiasis was recorded at 100%. In addition, the calculation of worm eggs per gram fecal sample was obtained the number of infecting eggs ranges from 0-500 and the categorized as mild degree of infection. The results of statistical analysis using Chi-Square test was showed no significant differences in the intensity of infection in male and female goats (p>0.05). However, there was significant differences in the intensity of infection in goat between 0-12 months age and above 12 months age (p<0.05).

Effect of Helminth Infestationin Children Infected with Human Immunodeficiency Virus (HIV)

Introduction: Infection by human immunodeficiency virus results in immune destruction, while studies among the Ethiopian immigrants in Israel showed that chronic helminthiasis induces immune dysregulation. With destruction of CD4+ cell and consequently progression to AIDS, the host may be more susceptible to invading organisms such as helminths. This study was aimed at determining the effect of immune state on the prevalence and intensity of helminth infection in HIV infected children in two hospitals in Abakaliki.Material and Methods: It was a cross sectional study that involved consecutive recruitment of 84 confirmed HIV infected children attending the ART clinic. Stool analysis for subjects was done, using the Kato-Katz technique. Blood sample for estimation of CD4 cell count was carried outusing flow cytometer from the HIV positive subjects.Results: A total of 84 subjects were recruited during the study period, majority were males (58.3%). Male to female ratio was 1.4:1. The age range of participants was 2-17 years, while mean age of subjects infected with helminthiasis was 6.10± 3.34 year. A significant number of subjects in advanced and severe immunological stages had helminthiasis (χ2 =12.49, p=0.001). There was however no significant relationship between intensity of helminthiasis and immunologic stages of subjects.Conclusion: The study suggests that immunodeficiency state may increase the susceptibility of helminth infection in HIV infected children. Hence children with HIV/AIDS may benefit from routine testing and/or de-worming of helminth infection.

Genetics and infection dynamics of Paratrichosoma sp in farmed saltwater crocodiles (Crocodylus porosus).

Paratrichosoma-associated helminthiasis has been identified in saltwater crocodiles under intensive farming conditions. The development of sustainable integrated management practices is dependent on a detailed understanding of Paratrichosoma population genetics and infection dynamics. This study investigated the genetic relationships of Paratrichosoma sp in a population of commercially farmed saltwater crocodiles, Crocodylus porosus, in northern Australia. 18S ribosomal RNA gene sequence data were obtained from Paratrichosoma sp eggs present in the epidermis of infected animals. A high level of genetic diversity was distributed within the Paratrichosoma sp population (241 variable positions in the 1094 bp alignment), indicating an accelerated rate of nucleotide base-pair substitutions in this genus of nematodes. Several possible environmental correlates of the incidence and intensity of helminthiasis, including season, rainfall, and mean monthly temperature, were investigated by visual inspection of crocodile skins. Stepwise logistic regression revealed a significant negative linear relationship (P = 0.011, R (2) = 32.69 %) between mean monthly rainfall and the incidence of monthly Paratrichosoma-associated helminthiasis. Variation in the severity of Paratrichosoma-associated helminthiasis could not be explained by any of the independent environmental variables included within an ordinal regression analysis. The large genetic diversity in these nematodes indicates a high probability of anthelmintic resistant alleles occurring in the population. We discuss how the spread of these alleles may be mitigated by adopting targeted treatment protocols.

Relationship between nutritional status and intensity of common intestinal helminths among children in enugu, South-East Nigeria.

Background:Intestinal helminthiasis is associated with malnutrition in children.Aim:The objective of this study was to determine the intensity and effect of the common intestinal helminths on the nutritional status of children in Enugu, Nigeria.Subjects and Methods:A cross-sectional study of 460 children conducted in Enugu metropolis, south-east Nigeria between August and September 2003. Their stools were analyzed at the research laboratory of the Federal Ministry of Health, National Arbovirus and Vector Research Center, Enugu. The intensity of the common intestinal helminths was determined using the standard Kato-Katz method of fresh stool samples. The classification intensity of helminthic infestation was according to the World Health Organization classification. Data were analyzed using Statistical Software for Social Sciences version 11.0 (Chicago IL, USA). P < 0.05 was regarded as statistically significant.Results:452 of 460 children (98.3%) had normal height for age, weight for age and weight for height Z-scores. Six of the 460 children (1.3% were wasted), 1/460 stunted (0.2%) and 1/460 wasted and stunted (0.2%). 150 out of 460 (32.6%) studied were infected with helminths. There was no significant relationship between the intensity of helminth infection and the nutritional status of the children.Conclusion:Although the prevalence of helminthiasis in children in Enugu was high, intensity of helminthiasis in these children was mainly mild. Hence, majority of them had normal weight and height measurements for age and sex.

Soil-transmitted helminth infection and urbanization in 880 primary school children in Nicaragua, 2005

The prevalence of soil-transmitted helminthiasis is close to half the population in Central America, with the marginalized peri-urban poor disproportionately affected. Previous single province helminth surveys conducted in Nicaragua have shown Ascaris lumbricoides to be the predominant species. In 2005, we conducted a cross-sectional study of 880 children in 10 Nicaraguan primary schools located in four provinces. We aimed to establish the prevalence and intensity of soil-transmitted helminth infections and to investigate the factors associated with helminthiasis. Almost half (46%) of the children were infected with soil-transmitted helminths. Tichuris trichiura was the most common infective species (34.7%). The prevalence and intensity of helminthiasis was heterogeneous in the provinces, with children educated in peri-urban schools most affected. Healthy policies are required that favour the peri-urban poor who have inadequate and declining access to water and sanitation.