Topic 3 - Infection and response ( 2. viral diseases ) Flashcards
1
Q
what are the 3 types of viral diseases
A
measles, HIV, tobacco mosaic virus
2
Q
what are measles
A
spread through droplets or and infected persons sneeze or cough. people with measles will develop a red skin rash and they’ll show signs of fever.
3
Q
what is HIV
A
the virus is spread by sexual contact, by exchanging bodily fluids or when people share needles while taking drugs. initially has flu symptoms.
4
Q
what is tobacco mosaic virus
A
affects many species of plants. causes a mosaic pattern on the leaf and discolouration meaning plant cannot carry out photosynthesis as well, so virus effects the growth.
