Question

Aplastic anemia may be induced by which viral agents?

1) parvovirus B19
2) EBV
3) HIV
4) hepatitis

Answer 1

Aplastic anemia may be induced by viral agents such as parvovirus B19, EBV, HIV, and certain types of hepatitis viruses.

Step-by-step explanation:

Aplastic anemia can be induced by several viral agents, including:

• Parvovirus B19: This virus can lead to aplastic anemia by infecting and destroying red blood cell progenitors in the bone marrow.
• EBV (Epstein-Barr virus): EBV has been associated with various diseases, including Burkitt lymphoma. In immunocompromised individuals, EBV can induce the formation of B-cell lymphomas and contribute to aplastic anemia.
• HIV (Human Immunodeficiency Virus): HIV can reactivate EBV, leading to the proliferation of EBV+ B cells and the development of lymphomas, including lymphomas associated with aplastic anemia.
• Hepatitis: While the specific type of hepatitis virus is not mentioned, certain types of hepatitis viruses, such as hepatitis E, can cause aplastic anemia in some cases.