AIDS is the disease caused by which virus?

AIDS is the disease caused by which virus?

• A. HIV
• B. HPV
• C. HCV
• D. HBV

Answer: (A)

AIDS results from HIV infection. HIV is a human immunodeficiency virus that attacks CD4+ T cells, weakening the immune system. When the virus is not controlled, the immune system deteriorates and opportunistic infections and certain cancers emerge, defining AIDS. The other viruses listed cause different diseases—HPV leads to warts and some cancers, while HCV and HBV cause hepatitis and liver issues—so they are not responsible for AIDS. Antiretroviral therapy can control HIV and prevent progression to AIDS, though it is not a cure.

AIDS results from HIV infection. HIV is a human immunodeficiency virus that attacks CD4+ T cells, weakening the immune system. When the virus is not controlled, the immune system deteriorates and opportunistic infections and certain cancers emerge, defining AIDS. The other viruses listed cause different diseases—HPV leads to warts and some cancers, while HCV and HBV cause hepatitis and liver issues—so they are not responsible for AIDS. Antiretroviral therapy can control HIV and prevent progression to AIDS, though it is not a cure.