background opportunistic infections have become much more considerable in the last decades, especially in immunocompromised patients and due to the medical interventions. cryptosporidium is a pathogenic protozoan parasite causing diarrhea in children and some times acts as a life threatening opportunistic pathogen in the immunocompromised adults. objectives this study aimed to investigate the p...

The caridean shrimp Tuleariocaris neglecta Chace, 1969, is reported from the Alcatraz Archipelago (24°S, off coast of southeastern Brazil) in association with sea urchin Astropyga magnifica Clark, 1934. This finding significantly increases known range this species 20°S to 24°S. An overview their respective associated host urchins provided.

Lyme disease is a major vector-borne bacterial disease in the USA. The disease is caused by Borrelia burgdorferi, and transmitted among hosts and humans, primarily by blacklegged ticks (Ixodes scapularis). The ~25 B. burgdorferi genotypes, based on genotypic variation of their outer surface protein C (ospC), can be phenotypically separated as strains that primarily cause human diseases-human in...

Coral reefs are known to be among the most biodiverse marine ecosystems and one of richest in terms associations species interactions, especially those involving invertebrates such as corals sponges. Despite that, our knowledge about cryptic fauna their ecological role remains remarkably scarce. This study aimed address this gap by defining for first time spatial ecology association between epi...

Learning health systems necessitate interdependence between health and academic sectors and are critical to address the present and future needs of our health systems. This concept is being supported through the new Canadian Institutes of Health Research (CIHR) Health System Impact (HSI) Fellowship, through which postdoctoral fellows are situated within a health system-related organization to h...

Immigrants' access to citizenship in their country of residence is increasingly debated in Western democracies. It is an underlying premise of these debates that citizenship and national belonging are closely linked, but at the same time there is considerable cross-country variation in how citizenship is approached in Western democracies. In the literature, these differences are typically under...

Hosts and parasites co-evolve, with each lineage exerting selective pressures on the other. Thus, parasites may influence host life-history characteristics, such as longevity, and simultaneously host life-history may influence parasite diversity. If parasite burden causes increased mortality, we expect a negative association between host longevity and parasite species richness. Alternatively, i...

Most metazoans engage in mutualistic interactions with their intestinal microbiota. Despite recent progress the molecular mechanisms through which microbiota exerts its beneficial influences on host physiology are still largely uncharacterized. Here we use axenic Drosophila melanogaster adults associated with a standardized microbiota composed of a defined set of commensal bacterial strains to ...

A wealth of studies has demonstrated that resident microorganisms (microbiota) influence the pattern of nutrient allocation to animal protein and energy stores, but it is unclear how the effects of the microbiota interact with other determinants of animal nutrition, including animal genetic factors and diet. Here, we demonstrate that members of the gut microbiota in Drosophila melanogaster medi...