Vocabulary

1. Vocabulary

2. Polio a. A disease caused by a virus that attacks the spinal cord and damages the nervous system. Affects mainly children and can lead to paralysis or deformed limbs. b. A disease caused by a bacteria that attacks the spinal cord and damages the nervous system. Affects mainly children and can lead to paralysis or deformed limbs. c. A disease caused by a virus that attacks the brain and damages muscles. Affects mainly children and can lead to paralysis or deformed limbs.

3. Epidemic a. An outbreak of disease that isconfined to a particular place. b. An outbreak of disease that is spread throughout an entire country, continent or the whole world. c. An outbreak of disease that spreads rapidly to many people.

4. AIDS a. A disease caused by a virus that stops the body from being able to protect itself from other diseases, usually leading to death. b. A disease caused by bacteria that stops the body from being able to protect itself from other diseases, usually leading to death. c. A disease caused by a virus that helps the body protect itself from other diseases, preventing death.

5. Virus a. A large organism that can reproduce in only in living cells. They cause disease in humans, animals, and plants. b. A tiny organism that can reproduce only in living cells. They cause disease in humans, animals, and plants c. A tiny organism that has one cell.They come in many shapes. They can cause disease in plants or animals, but many kinds are useful.

6. Extinct a. Not abundant b. No longer in existence c. Coming or occurring far apart in time; uncommon; unusual