May 30, 2025

Vax Facts Friday 5.30.25

red blood cells

Q: Hepatitis B is more infectious than which other virus transmitted by blood?

A. HIV 
B. HPV 
C. Hepatitis C 
D. West Nile virus

 

 

 

 

 

 

 

 

 

 

 

The correct answer is A. HIV 
Hepatitis B is transmitted through blood and is 100 times more infectious than HIV. An estimated 1 billion infectious viruses are in one-fifth of a teaspoon of blood of an infected person. Thus, exposure to even a minute amount of blood, such as could be found on a shared toothbrush or razor, can cause infection.
 

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