Question

how can individuals in communities prevent the global spread of hepatitis c?
by getting vaccinated
by washing their hands before eating
by avoiding contact with the blood of others
by avoiding contact with the saliva of others

Explanation:

Hepatitis C is mainly transmitted through blood - to - blood contact. There is no vaccine for hepatitis C (so the first option is incorrect). Washing hands before eating mainly helps prevent the spread of some gastrointestinal pathogens (not directly related to hepatitis C transmission). Hepatitis C is not spread through saliva (so the fourth option is incorrect). Avoiding contact with others' blood is a key preventive measure as it cuts off the main transmission route of hepatitis C.

Answer:

C. by avoiding contact with the blood of others