Question

Yet unlike chicken pox or measles, a vaccine needs to be periodically updated. Given the number of strains of the virus, can you think of the reason why there is no permanent vaccine?

Can someone help me please? Thank you guys! ​

Answer 1

Answer:

Unavailability of permanent vaccine may be due to some reason like

1) Not enough knowledge about that particular microbe resulting in failure of makigg vaccine against it

2)The microbe (virus) mutates more oftenly