viral disease ( measles, hiv/aids and tobacco mosaic virus)

Question 1

what is the symptoms of measles?
how is it spread?
how is it prevented?

Answer 1

red skin rash and fever
droplet infections
vaccinations at birth

Question 2

what are the symptoms of hiv?
how is it spread?
how is it prevented?

Answer 2

flu like symptoms, which leads to aids
spread via sexual contact or exchange of bodily fluids
use of condoms, or antiretroviral drugs

Question 3

what are the symptoms of tobacco mosaic virus?

Answer 3

causes part of leaf to discolour, so that part of plant cannot photosynthesise, which reduces plant’s growth