Disease Transmission

Diseases such as the swine flu, have the potential to jump from animals to humans. What type of animal does "swine" refer to?

• sheep

• pig

• cow

• horse

Which is not one of the three stages a virus must go through to be successful?

• contact

• infection/replication

• transmission

• cellular growth

White blood cells are your body's main immune response. What does that mean?

• White blood cells help deliver oxygen to the cells.

• White blood cells help carry away carbon dioxide from the cells.

• White blood cells help blood clot to stop wounds from bleeding.

• White blood cells help break down and destroy viruses and bacteria in your body.

Lettuce would be an inhospitable landscape or host for this viral particle because?

• Viruses are specific. Their proteins only allow them to attach to very specific types of cells.

• Viruses cannot use lettuce leaves to replicate because viruses don't like lettuce.

Viruses jumping from a chimpanzee to a human have a higher chance of infecting a human because-

• Humans and chimps have 98% DNA similarity making it easier for those viruses to jump and infect humans, since we are genetically very similar.

• Humans and chimps have similar food sources therefore increasing the chances of infecting both species.

The more widespread a virus, the more likely it becomes that dangerous mutations will result?

• True

• False

People in one country should be aware and monitor viral outbreaks in countries across the ocean?

• True

• False