This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Viral infection not transmitted by blood transfusion is 
Select and explain. 
A. Parvovirus B-19, B. Dengue virus, C. Cytomegalovirus, D. Hepatitis G virus
B: Dengue virus
Answer: B: Dengue virus 
Explanation: Dengue fever is transmitted by the bite of Aedes aegypti mosquito. Parvovirus transmission through respiratory route and blood. Hepatitis by parental, sexual and perinatal. Cytomegalovirus - transmitted by transplacental route, postnatal infection by sexual intercourse, blood transfusion and organ transplantation. Ref: Baveja textbook of microbiology; 4th edition.