Earlier migration in males than in females is the commonest pattern in migrating passerines and is positively related to size dimorphism and dichromatism. The early arrival of males is a costly trait that may confer reproductive advantages in terms of better territories and/or mates. Given the physiological cost of migration, early migrants are those in best condition and accordingly the preval...

Patterns of infection and prevalence result from complex interactions between hosts and parasites, the effects of which are likely to vary by species. We investigated the effects of age, sex and season on the likelihood of individual infection, and the effects of host population size, sex ratio and age structure on parasite prevalence. We capitalized on data from a long-term study of yellow-bel...

A cross-sectional retrospective survey using the past five years clinical records (2005-2009) was conducted. The study was aimed at assessing the status of common intestinal parasites from Bale-Robe Health Center, Southeastern Ethiopia, in 2009/2010. The survey involved collection of data recorded on intestinal parasite from the health center during 2005-2009. Precoded questionnaires and interv...

In developing countries due to lack of sanitary practices, poor socioeconomic conditions and huge population burden, intestinal parasitic infections continue be a major public health problem. The present study was done determine the prevalence Intestinal (IPI) among patients attending our tertiary care rural hospital. conducted for duration 3 years at R L Jalappa Hospital Research Centre, Kolar...

giardia duodenalis is globally recognized as an important zoonotic intestinal protozoan parasite. so far, eight assemblages of g. duodenalis (a-h) have been identified. substantial evidence suggests the zoonotic potential of assemblages a, b, and e in livestock. in this study, the genotype of giardia duodenalis isolates was genetically identified by determining the sequence of ssu-rrna gene and...

abstract intestinal parasitic infections are among the most important infectious diseases that are associated with individual and public hygiene. every year millions of people are infected with some sort of intestinal parasites worldwide. in iran there are different types of intestinal parasites that cause economic, social, and health losses. the aim of the cross-sectional study was to investig...

Expulsion of intestinal nematode parasites and the associated increased contraction by intestinal muscle are T cell dependent, since both are attenuated in athymic rodents. The CD4 T-cell subset has been strongly associated with worm expulsion; however, the relationship between these cells, antigen presentation, and worm expulsion is not definitive and the role of these factors in intestinal mu...