How is hep s transmitted?

Transmission. The hepatitis A virus is transmitted primarily by the faecal-oral route; that is when an uninfected person ingests food or water that has been contaminated with the faeces of an infected person.

Can schistosomiasis cause hepatitis?

Co-infection of schistosomiasis, HBV and HCV is common in countries where schistosomiasis is endemic. Occult hepatitis B occurs in patients at high risk for HBV infection (e.g., patients on hemodialysis, patients receiving blood transfusions).

How does schistosomiasis affect the liver?

Schistosomiasis is an infection of trematodes, Schistosoma, causing periportal fibrosis and liver cirrhosis due to deposition of eggs in the small portal venules. In schistosomiasis caused by S. mansoni, sonography shows echogenic thickening or fibrotic band along the portal veins.

What kind of virus does s.mansoni have?

S. mansoni infection often occurs alongside those of viral hepatitis, either hepatitis B virus (HBV) or hepatitis C virus (HCV). This is due to high prevalence of schistosomiasis in areas where chronic viral hepatitis is prevalent.

How is Schistosoma mansoni transmitted from host to host?

S. mansoni is transmitted through water, where freshwater snails of the genus Biomphalaria act as intermediate hosts. The larvae are able to live in water and infect the hosts by directly penetrating the skin. Prevention of infection is done by improved sanitation and killing the snails.

Which is the intermediate host for Schistosomiasis mekongi?

Intermediate hosts are snails of the genera Biomphalaria, (S. mansoni), Oncomelania (S. japonicum), Bulinus (S. haematobium, S. intercalatum, S. guineensis). The only known intermediate host for S. mekongi is Neotricula aperta.

How is schistosomiasis haematobium diagnosed in Sub-Saharan Africa?

Current estimated total number of individuals with morbidity and mortality due to Schistosomiasis Haematobium and S. Mansoni infection in Sub-Saharan Africa Diagnosis Schistosomiasis is diagnosed through the detection of parasite eggs in stool or urine specimens.