Question

Which measure would be MOST effective in increasing the human population's immunity against contagious diseases?

A. Getting vaccinated against contagious diseases
B. Treating the first person infected with the contagious disease
C. Isolating the first person infected with the contagious disease
D. Distributing antibiotics in the community to avoid the contagious disease

Answer 1

Answer:

I think it's letter B

because if you treat the first affected person then you can ensure that the disease is not around and the community got rid of it.