Question

which of the following is a preventive measure for avoiding the spread of infectious diseases?
a. antibiotic use
b. hand hygiene
c. overuse of vaccines
d. ignoring symptoms

Explanation:

Hand hygiene is a well - known preventive measure. Antibiotic use is for treatment (not prevention in a general sense for all infectious diseases), overuse of vaccines is not a valid preventive measure (vaccines are used appropriately, not overused), and ignoring symptoms can lead to more spread.

Answer:

B. Hand hygiene