Question

one of the reasons that hepatitis b is highly contagious is that the virus
o a. lives in many people who are not aware it is there
o b. can remain active for several days in dried blood
o c. cannot be prevented with a vaccine
o d. is transported through the air

Explanation:

• Option a: While some with Hepatitis B may be asymptomatic, this isn't the main reason for its high contagiousness related to the virus's properties.
• Option b: Hepatitis B virus can remain viable in dried blood for several days, which contributes to its spread through contact with contaminated surfaces or materials, making it highly contagious.
• Option c: Hepatitis B can be prevented with a vaccine, so this is incorrect.
• Option d: Hepatitis B is not airborne; it spreads through blood, bodily fluids, etc., so this is wrong.

Answer:

b. can remain active for several days in dried blood