Prevalence Of Infection In Males Research Articles

Gender-related differences in prevalence, intensity and associated risk factors of Schistosoma infections in Africa: A systematic review and meta-analysis.

BackgroundSchistosomiasis remains a global-health problem with over 90% of its burden concentrated in Africa. Field studies reflect the complex ways in which socio-cultural and socio-economic variables, affect the distribution of Schistosoma infections across different populations. This review set out to systematically investigate and quantify the differences in Schistosoma infection burdens between males and females in Africa for two of the most prevalent Schistosoma species—Schistosoma mansoni and Schistosoma haematobium.MethodologyWe searched (from inception to 11th March 2020) Embase, MEDLINE, PubMed, and Web of Science for relevant studies on schistosomiasis. We included studies that report S. mansoni and/or S. haematobium prevalence and/or intensity data distributed between males and females. We conducted meta-analyses on the male to female (M:F) prevalence of infection ratios. Subgroup analyses were performed according to study baseline prevalence, sample size and the lower and upper age limit of study participants. We also present a descriptive analysis of differential risk and intensity of infection across males and females. Evidence for differences in the prevalence of schistosomiasis infection between males and females is presented, stratified by Schistosoma species.ResultWe identified 128 relevant studies, with over 200,000 participants across 23 countries. Of all the reported differences in the prevalence of infection between males and females, only 41% and 34% were statistically significant for S. mansoni and S. haematobium, respectively. Similar proportions of studies (27% and 34% for for S. haematobium and S. mansoni, respectively) of the reported differences in intensity of infection between males and females were statistically significant. The meta-analyses summarized a higher prevalence of infection in males; pooled random-effects weighted M:F prevalence of infection ratios were 1.20 (95% CI 1.11–1.29) for S. haematobium and 1.15 (95% CI 1.08–1.22) for S. mansoni. However, females are underrespresented in some of the studies. Additionally, there was significant heterogeneity across studies (Higgins I2 statistic (p-values < 0.001, I2values>95%)). Results of the subgroup analysis showed that the baseline prevalence influenced the M:F prevalence ratios for S. haematobium and S. mansoni, with higher M:F prevalence of infection ratios in settings with a lower baseline prevalence of infection. Across the studies, we identified four major risk factors associated with infection rates: occupational and recreational water contact, knowledge, socio-economic factors and demographic factors. The effect of these risk factors on the burden of infection in males and females varied across studies.ConclusionsWe find evidence of differences in prevalence of infection between males and females which may reflect differences in gender norms and water contact activities, suggesting that policy changes at the regional level may help ameliorate gender-related disparities in schistosomiasis infection burden. Collecting, robustly analysing, and reporting, sex-disaggregated epidemiological data, is currently lacking, but would be highly informative for planning effective treatment programmes and establishing those most at risk of schistosomiasis infections.

The current scenario of Covid-19 in Chittagong Metropolitan area, Bangladesh: A survey Study

Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has induced a sense of panic around the world as the disease is highly contagious and has been spreading in full swing. This study was aimed to investigate SARS-CoV-2 associated epidemiology and clinical outcomes in Bangladesh in order to understand the future course of COVID-19 pandemic and develop prevention approaches. A cross-sectional retrospective interview based study was conducted on RT-PCR confirmed COVID-19 patients admitted in Chattagram Maa O Shishu General Hospital Chittagong, Bangladesh and who recovered four weeks prior to the interview date. Of the total 500 patients, 7% patient are asymptomatic where as for the symptoms associated with COVID-19 fever (85%) and cough (70%) were the most prominent among cases. Our study has revealed that among the age groups, the 40-70 showed the highest infection rate (74.7%) and in terms of gender, the prevalence of Covid-19 infection in males (65%) was 2 times more than that in females (35%). Diabetes was found about (40%) and Hypertension was found (42%), so diabetic and hypertesive patient are more affected. The most used drug is Enoxaparin sodium, Methylprednisolone Na Succinate, Montelucast, fexofenadinb, Doxycyclline, Doxofylline, zinc, vitamin-C, D and about 60% patient need oxygen supply. The most complication after recovery is weak -fatigue, cough &amp; breathing problem.

Sex and Age-related Parasitism of &lt;i&gt;Clarias gariepinus&lt;/i&gt; in earthen ponds in African Regional Aquaculture Centre, Aluu, Rivers State, Nigeria

This study aimed at investigating the sex and age-related parasitic burden of Clarias gariepinus cultured in earthen ponds. Eighty–five (85) fish samples were selected randomly for analyses from three earthen ponds. Sexing was done by the observation of the urinogenital papillae. For parasitological analysis, skin and gill scrapes were taken for external parasites while the stomach and intestines were slit open, rinsed and observed for helminthic worms. Parasites identified included; Chilodonella sp. (0.3%), Ichthyophthirius sp. (41.1%), Trichodina sp. (55%), Icthyobodo sp., (1.0%) and Gyrodactylus sp. (2.4%). From the study 31 out of 56 males and 20 out of 27 females were infected with parasites. Prevalence of infection in males and females were 55.36% and 74.07% respectively. Mean intensity of parasites was also higher for females (150.75) than for males (62.68) Chi square analysis however, revealed no significant effect (p&lt;0.05) of parasitism on gender. It was further observed that juvenile males and early adult females respectively, had more parasites with 55.3 and 92.4 parasite mean intensities. Among age groups, the mid juveniles (25-99g) (19%), late juveniles (100-299g) (65%) and early adults (300-500g) (14%) were most infected, although there was no significant effect (p&lt;0.05). Sex-related prevalence could be based on hormonal changes and reproduction in females, and competitive search for mates by males. Age-related infection was predicated upon active feeding habits reported among fish of these ages It is therefore recommended that routine health checks be carried out for pond cultured fish. Furthermore, that older fish be sorted and kept together, as they would have stronger immunity than younger fish.&#x0D; Keywords; Zoonoses, fish infection, late juveniles, earthen pond, Clarias gariepinus, sex, age

SCANNING ELECTRON MICROSCOPY OF CATATROPIS AEGYPTIACUS N. SP. (TREMATODA: NOTOCOTYLIDAE) FROM NORWAY BROWN RAT, RATTUS NORVEGICUS (MURIDAE: MAMMALIA) FROM EGYPT

Catatropis aegyptiacus n. sp. was isolated from the large intestine of 28 out of 91 rat Rattus norvegicus. The prevalence of infection in males is 40% and 30% in females. The infection rate was (54.54%, 36.84%,26.3% and 23.8%) in winter, fall, summer and spring respectively. The study of the new species by light and scanning electron microscopy revealed that Catatropis aegyptiacus n. sp. can be distinguished from all other species of the genus in having 10 11 protrudedventral glands that extend from the intestinal bifurcation level to the ovarian level, the triangular pointed spines cover the first anterior third of the body, the position of the genital pore and larger egg size. Also, the outer rim of oral sucker has unciliated sensory papillae and the tegument of the anterior dorsal surface covered with irregular ridges studded randomly with unciliated and ciliated domed-like papillae. Tegument of the body posterior half has branching and anastomosingtransverse striations with small unciliated sensory papillae.

Syphacia obvelata (Nematode, Oxyuridae) infecting laboratory mice Mus musculus (Rodentia, Muridae): phylogeny and host-parasite relationship.

Syphacia obvelata is a pinworm nematode parasite infecting man and laboratory animals in high abundance. This parasitological study was carried out during the period of March 2014-February 2015 to investigate the helminth parasites infecting the laboratory mice Mus musculus in the Animal House at Cairo University, Egypt. The prevalence of S. obvelata in M. musculus was 75.0 %. The extent of infection with S. obvelata is analyzed according to the sex of the host mice. It was shown that the prevalence of male infection was greater than female worms. Morphological characterization revealed that the present Oxyurid species possesses a rounded cephalic end with less developed lips, esophagus divided into cylindrical corpus, and globular bulb supported internally with valvular apparatus; three mamelons are located at the ventral surface with a single chitinized spicule and a gubernaculum provided with an accessory hook in males, and ovijector apparatus opens ventrally by the vulva surrounded by protruded lips in female worms. Body of the male was 0.623-1.130 (0.830 ± 0.11) mm long and 0.092-0.130 (0.110 ± 0.01) mm wide; the esophagus was 0.164-0.280 (0.210 ± 0.01) mm long; the nerve ring and excretory pore are located at 0.035-0.132 (0.073 ± 0.01) and 0.087-0.191 (0.145 ± 0.01) mm from the anterior end, respectively, while the female measured 2.930-4.650 (3.540 ± 0.1) mm long and 0.120-0.232 (0.156 ± 0.001) mm wide; the esophagus was 0.213-0.410 (0.342 ± 0.01) mm long; the nerve ring, excretory pore, and vulval opening are located at 0.026-0.157 (0.121 ± 0.01), 0.134-0.243 (0.195 ± 0.01), and 0.323-0.632 (0.546 ± 0.11) mm from the anterior end, respectively; eggs measured 0.120-0.139 (0.129 ± 0.001) mm long and 0.030-0.052 (0.045 ± 0.001) mm wide. It compared morphometrically with other Syphacia species described previously and showed little differences in measurements. Molecular characterization based on small subunit ribosomal DNA (rDNA) was done to confirm the obtained morphological and morphometric results. A preliminary genetic comparison between SSU rDNA of the present parasite and other species of Oxyuridae places it as a putative sister taxon to other S. obvelata.

HIV/AIDS: perfil epidemiológico de adultos internados em hospital universitário

An epidemiologic description of adult patients with HIV/AIDS at the University Hospital of Londrina-PR, from 2002 to 2006, based on the analysis of 497 medical records. Guided by a previously designed instrument, regarding demographic data research reveals considerable prevalence of infection in males (62%) compared to females (38%) living in Londrina (65%), low education level ( 58%), low income (68%) and independent professionals (20%), homemakers (17%), retired (7.6%) single (40%) and free union (34%). On clinical data, the main clinical complications which are the reason for hospitalization, concentrate: tuberculosis (28.2%), moniliasis/oral candidiasis (27.1%) and toxoplasmic encephalitis (22.5%), with an average of 9.4days of hospitalization; slight predominance of deaths in females: men (29.4%) and women (30.3%); causes of mortality: 37.2% for septic shock and 21.6% for dysfunction of multiple organs, and chances of survival after approximate 10 years after being diagnosed, there was a alight advantage for men (65%) over women (59.2%).

Is oncogenic human papillomavirus (HPV) infection in urogenital organs of the male risky for both his female sexual partner and himself? Prevalence of HPV infection in males

Is oncogenic human papillomavirus (HPV) infection in urogenital organs of the male risky for both his female sexual partner and himself? Prevalence of HPV infection in males

The relationship between infection and disease in Wuchereria bancrofti infection in Ghana

The relationship between infection and clinical disease in Wuchereria bancrofti infection was investigated in a community-based study in different endemic areas in Ghana. At the individual level, there was no association between acute adenolymphangitis and infection (microfilaraemia) status.There was a negative association between infection status and lymphoedema/elephantiasis, but a positive association with hydrocele; however, the intensity of infection was negatively associated with both elephantiasis and hydrocele. The community prevalence of infection was strongly associated with the prevalence of clinical filariasis (especially hydrocele). There was a strong positive association between the prevalence of infection in males and the odds of a case of hydrocele being microfilaraemic, suggesting that there is no acquired immunity to reinfection in cases of hydrocele. The pathophysiologies of elephantiasis and hydrocele may therefore differ from one another, and require further investigation.

Gastrointestinal helminth parasites of the black rat (Rattus rattus) in Abeokuta, southwest Nigeria.

A survey of 612 black rats, Rattus rattus (282 mates and 330 females), for infections with helminth parasites was carried out in Abeokuta, in southwest Nigeria. Three hundred and ninety six (64.7%) were infected with one or more of seven species of helminths comprising three cestodes (Hymenolepis diminuta, Taenia taeniaeformis (cyst) and Raillietina sp.) three nematodes (Mastophorus muris, Trichuris muris and Syphacia sp.) and one acanthocephalan (Moniliformis moniliformis). Although the prevalence of infection in males (76.6%) was more than in females (54.5%) (P<0.01), there was no difference in the mean intensity of infection, MI, (males=11.6+/-0.94, females=11.1+/-1.56). Among the different weight classes, rats of 100-130 g were more infected (893%) and had the highest mean intensity (MI=21.6) than those that weighed <100 g (47.1%, MI=6.4) and >130 g (73.9%, MI=9.3). Moniliformis moniliformis was the most common species encountered (39.2%) and had the highest mean intensity in both sexes (x=7.4+/-0.74). Considering the rat-man proximity, this finding has considerable public health implications.

Biopsy of Onchocerca nodules in the Igbos of Nigeria.

The occurrence of Onchocerca nodules in the Igbos of Nigeria was studied in a biopsy series. There were 90 cases in approximately 5,000 biopsies received in 4.5 years at a central laboratory. The prevalence of infection in males was 1.5 times that of females. The two youngest patients were both aged 3 years; the oldest was approximately 70 years. Of the 79 single-site biopsies, 14 (17.7%) nodules occurred on the head and 65 (82.3%) were done elsewhere. The nodules above the waist line totalled 42 (53.2%) and those below it 37 (46.8%). The favorite location was the forehead cephalically and the hip caudally. Eyelid and breast nodules were also noteworthy.