Chapter 5.4 Viral diseases Flashcards

1
Q

How is the measles virus spread? and what symptoms does it cause?

A

Measles virus can be spread by droplet infection. It causes fever and rash and can be fatal. There is no cure. Isolation of patients and vaccination prevents spread.

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2
Q

What symptoms does HIV cause? what part of the body does it attack?

A

HIV initially causes flu-like illness. Unless it is successfully controlled with antiretroviral drugs the virus attacks the body’s immune cells. Late stage HIV and AIDS, occurs when the body’ s immune system is so badly damaged it can no longer deal with infections.

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3
Q

How is HIV spread?

A

HIV is spread sexual contact or by the exchange body fluids, such as blood, which occurs when drug needles are shared.

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4
Q

How is tobacco mosaic virus spread?

A

Tobacco mosaic virus is spread by contact and vectors. It damages leaves and reduces photosynthesis. There is no treatment. Spread is prevented by field hygiene and pest control.

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5
Q

Describe the link between HIV and AIDS.

A

HIV(Human Immunodeficiency Virus) is a virus that causes an infection, AIDS (Acquired Immunodeficiency syndrome) is a condition Contracting HIV can lead to the development of AIDS.

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