4.3.1.2 Viral Diseases Flashcards
1
Q
What are three viral diseases?
A
- measles
- HIV
- TMV
2
Q
How is measles spread?
A
- droplets from an infected person’s sneeze or cough
3
Q
What are the symptoms of measles?
A
- red skin rash
- fever
4
Q
What are some complications of measles that can be fatal?
A
- can sometimes lead to pneumonia or inflammation of the brain
5
Q
How do you prevent measles?
A
- vaccinations
6
Q
How is HIV spread?
A
- sexual contact
- exchanging bodily fluids such as blood
- sharing needles
7
Q
What are the symptoms of HIV?
A
- flu-like symptoms for a few weeks then doesn’t experience any for years
8
Q
What are the damages HIV causes?
A
- attacks immune cells
- if badly damaged, immune system can’t cope with other infections or cancers, at this stage known as AIDS
9
Q
How do you prevent HIV?
A
- antiretroviral drugs
10
Q
What is TMV?
A
- tobacco mosaic virus
- affects many species of plants like tomatoes
11
Q
What does TMV cause?
A
- mosaic pattern on leaves of plant, parts of it become discoloured
12
Q
What does discolouration mean for the plant?
A
- can’t carry out photosynthesis
