Question

In the 1880s, Louis Pasteur developed a method of weakening viruses. The weakened viruses could be injected into healthy individuals.

How is this method effective in fighting viral diseases?

Answer 1

since Louis Pasteur developed a method of weaking the viruses, the weeked virus could be injected to healthy individuals. He did this becuase if you get injected by the weakened viruis you will have a greater chase of NOT getting that said virus.

Step-by-step explanation:

Answer 2

The immune system develops antibodies in response to the weakened viruses.

Step-by-step explanation: