Which organisms are the three most common bloodborne pathogens?

Which organisms are the three most common bloodborne pathogens?

• A. HBV, HCV, and HIV
• B. Hepatitis A, B, and C
• C. HBV, HCV, and HPV
• D. HIV, HPV, and HSV

Answer: (A)

Bloodborne pathogens are infectious agents spread mainly through contact with infected blood. The three most common in occupational settings are hepatitis B virus, hepatitis C virus, and human immunodeficiency virus. Hepatitis B is highly contagious via blood and body fluids and has an effective vaccine, making it a primary concern. Hepatitis C is typically transmitted through blood-to-blood contact and often becomes chronic. HIV also spreads through blood and other body fluids, requiring careful precautions during exposure. In contrast, Hepatitis A is mainly spread by the fecal-oral route, and HPV and HSV are usually transmitted through skin-to-skin or sexual contact rather than blood exposure, so they aren’t classified as the main bloodborne pathogens.

Bloodborne pathogens are infectious agents spread mainly through contact with infected blood. The three most common in occupational settings are hepatitis B virus, hepatitis C virus, and human immunodeficiency virus. Hepatitis B is highly contagious via blood and body fluids and has an effective vaccine, making it a primary concern. Hepatitis C is typically transmitted through blood-to-blood contact and often becomes chronic. HIV also spreads through blood and other body fluids, requiring careful precautions during exposure. In contrast, Hepatitis A is mainly spread by the fecal-oral route, and HPV and HSV are usually transmitted through skin-to-skin or sexual contact rather than blood exposure, so they aren’t classified as the main bloodborne pathogens.