Question

why some diseases spreading inspite of vaccinations​

Answer 1

Answer:

vaccines cant cure some viral diseases

Explanation:

it is because some viruses like HIV changes their protein coat time to time faster rate so antibodies unable to detect the antigens ,hence all vaccines cant cure all viral diseases

Answer 2

Answer:

vaccines cant cure some viral diseases

it is because some viruses like HIV changes their protein coat time to time faster rate so antibodies unable to detect the antigens ,hence all vaccines cant cure all viral diseases.

Explanation:

@GENIUS