Communicable Disease - Virus

• Are viruses living organisms?

  No
• Are viruses made of cells? 

  No
• Viruses are about 10,000 times __________ than animal or plant cells. 

  Smaller
• How can measles be spread between people?

  Via droplets in air when an infected person coughs or sneezes
• What are the symptoms of measles?

  Fever (feeling hot and cold)

  Red skin rash
• In the UK, are most people are vaccinated against measles?

  Yes
• Which two ways can HIV be spread between people?

  Sexual contact

  Exchange of bodily fluids 
• Infection with the HIV virus can lead to __________. This is where the immune system is so weak that the person can catch unusual infections. 

  AIDS
• What is the treatment for HIV/AIDS? 

  Antiretroviral drugs 
• What type of organism does Tobacco Mosaic Virus (TMV) infect? 

  Plants 
• What is the main symptom of Tobacco Mosaic Virus (TMV)?

  Patches of the leaves get discoloured 
• Tobacco Mosaic Virus (TMV) reduces the amount of photosynthesis that a plant can do.

  What are the consequences of this? 

  The plant won't be able to produce as many sugars

  The plant won't be able to grow as well