Identification of Oocyst-Driven Infections in Humans and Animals through Stage-Specific Serology-Current Status and Future Perspectives.

The apicomplexan zoonotic parasite has three infective stages: sporozoites in sporulated oocysts, which are shed in unsporulated form into the environment by infected felids; tissue cysts containing bradyzoites, and fast replicating tachyzoites that are responsible for acute toxoplasmosis. The contribution of oocysts to infections in both humans and animals is understudied despite being highly relevant. Only a few diagnostic antigens have been described to be capable of discriminating which parasite stage has caused an infection.

Seroprevalence of Hepatitis E Virus in Moose (), Reindeer (), Red Deer (), Roe Deer (), and Muskoxen () from Norway.

Hepatitis E virus (HEV), a major cause of viral hepatitis worldwide, is considered an emerging foodborne zoonosis in Europe. Pigs () and wild boars () are recognized as important HEV reservoirs. Additionally, HEV infection and exposure have been described in cervids.

infection in two captive Patagonian maras.

infection was diagnosed in 2 captive Patagonian maras (). One animal developed fatal systemic toxoplasmosis and had concurrent localized bacterial and fungal infections; its daughter remained clinically healthy. Microscopic findings included acute, coagulative necrosis, lymphohistiocytic inflammatory infiltrates, and extra- and intracellular parasites in the liver, myocardium, urinary bladder, and adrenal glands of the diseased animal.

Detection of serum neutralizing antibodies to Simbu sero-group viruses in cattle in Tanzania.

Background: Orthobunyaviruses belonging to the Simbu sero-group occur worldwide, including the newly recognized Schmallenberg virus (SBV) in Europe. These viruses cause congenital malformations and reproductive losses in ruminants. Information on the presence of these viruses in Africa is scarce and the origin of SBV is unknown.