viral, fungi and protist diseases Flashcards
What is measles?
A viral disease spread by droplets from an infected person’s sneeze or cough
Measles can lead to complications like pneumonia or encephalitis.
What are the symptoms of measles?
Red skin rash and signs of fever
Fever indicates a high temperature.
What can measles lead to if there are complications?
- Pneumonia
- Encephalitis
These complications can be very serious or fatal.
How are most people vaccinated against measles?
When they are young
What is HIV?
A virus spread by sexual contact or exchanging bodily fluids such as blood
This can occur through sharing needles.
What initial symptoms does HIV cause?
Flu-like symptoms for a few weeks
What happens after the initial symptoms of HIV?
The person usually experiences no symptoms for several years
What can control HIV in the body?
Antiretroviral drugs
What does HIV attack in the body?
Immune cells
What is late stage HIV infection known as?
AIDS
What is tobacco mosaic virus (TMV)?
A virus that affects many species of plants, causing a mosaic pattern on the leaves
Commonly affects tomatoes.
What effect does tobacco mosaic virus (TMV) have on plants?
Discoloration of leaves, affecting photosynthesis and growth
What is rose black spot?
A fungus that causes purple or black spots on the leaves of rose plants
What happens to rose leaves affected by rose black spot?
They can turn yellow and drop off
How is rose black spot spread?
Through the environment in water or by the wind
How can gardeners treat rose black spot?
- Using fungicides
- Stripping the plant of affected leaves
Affected leaves need to be destroyed to prevent the fungus from spreading.
What causes malaria?
A protist
What role do mosquitoes play in the spread of malaria?
They are vectors that pick up the malarial protist when feeding on an infected animal
What happens when a mosquito feeds on another animal?
It infects the animal by inserting the protist into its blood vessels
What are the symptoms of malaria?
Repeating episodes of fever
How can the spread of malaria be reduced?
By stopping mosquitoes from breeding
What methods can protect people from mosquitoes?
- Using insecticides
- Using mosquito nets
True or False: Malaria can be fatal.
True
