Elzando2

Elzando #2

__**1. Describe the difference between leukocyte and white blood cells. **__ - The difference between leukocytes and white blood cells is that leukocytes are a more specific term for white blood cells. Leukocytes are cells in your body that is part of the immune system, while white blood cells is just one of the cells in your body.

__**2. The term proteins are frequently used in the study of immunology. Explain the term/concept proteins. **__ - Protein is used to describe molecules

__**3. Explain why the Black Death virus, which has caused millions of deaths, was deadly using concepts of immunology. **__

4. The recent bird flu virus, H7N9, has a 20% fatality rate if one is infected.

__**a) what does it mean - 20% fatality rate? **__ - This means that 20% of people have died from the bird flu virus.

- The way this is different from the common flu virus is that this is much more deathly and fatal than the normal common cold. This virus is also new and evolved, so scientist have never seen it before meaning that they don't know how to cure it. Scientist will have to find a new way to get rid of the bird flu meaning that they have to create a new antidot. Doctors and scientist have had run ins with this virus many times, so they now know how to cure a person that has got the flu.
 * __b) How is this virus different from a common flu virus? __**

__**c) Are there ways to prepare our body immune system against such fatal, deadly virus? **__ - I don't think that there is any proper way to prepare yourself for this new virus, but at the least you could get vaccinated before hand that way your body will have a better chance of fighting off the new virus that has entered your body. The reason being because when vaccinated they are injecting activated cells (cytrotoxic) that will help you immune system fight against the invading virus. The cytrotoxic cells will float around in your body searching for the virus. Once it has found/located the virus it will begin connect with the cell, thus creating memory cells. Memory cells are cells that remember the pathogens that have entered your body and if that same pathogen tried entering again it would have failed because the memory cell know to to properly dispose of it. There are antibodies in your body that will roam around searching for a specific antigen. If the virus every tried invading your body will be prepared to fight off the invading virus, so this is how you build up immunity against this fatal virus.

__**d) The bird flu virus wasn't infectious to humans before; explain why it could become viral and harmful to humans. **__ - The reason why it became viral to humans is because

e) Right now, the flu is unable to infect a person through human to human transmission; if it can infect through human to human transmissions, what could have changed in the virus?