Which of following viruses causes Hemolysis of Red blood cells ?

Ans. (b) Human parvovirus B19Ref: Robbin's pathology 9th ed. /635-36*Human parvovirus B19 is responsible for the aplastic crisis that can be life-threatening in cases of sickle cell anemia and hereditary spherocytosis. It is treated with blood transfusion.*Remember: Parvovirus infection in pregnant women is associated with Hydrops fetalis due to severe fetal anemia, sometimes leading to miscarriage or stillbirth. The risk of fetal loss is about 10% if infection occurs before pregnancy week 20 (especially between weeks 14 and 20), but minimal after then.