Final Answer:
The parasitic infection that can cause portal hypertension of the liver in infected individuals is Schistosomiasis.
Step-by-step explanation:
Schistosomiasis is a parasitic infection caused by trematode flatworms of the genus Schistosoma. The infection is prevalent in certain regions where freshwater snails, which act as intermediate hosts, are present. When infected individuals come into contact with contaminated water, the larvae released by the snails can penetrate the skin, leading to schistosomiasis.
In chronic cases, Schistosoma eggs can cause granulomatous reactions and fibrosis in the liver, leading to portal hypertension. This condition results from increased resistance to blood flow through the liver's portal vein system, leading to potential complications such as esophageal varices and ascites.