11/7/2011

homework:

1. comment on a muddiest point by midnight TONIGHT!!!!!!!!!

QUIZ today

Test wednesday make sure to come to class tomorrow(tuesday) with any questions you have!!!!!!!

In class we watched a malaria video:

www.pbs.org/wgbh/rxforsurvival/series/video/d_mal1_dis_malaria1_qt_h.html

Notes:

Active Immunity:

when the body or more specifically plasma B cells produce infection

active immunity comes in two forms

Vaccination:

a weakened form of the pathogen is injected into the body to allow the body to become familiar with the infection so it can be stopped quicker if exposed again

Exposure to the disease:

Allows for primary response to occur and the Memory B/T cells become familiar with the antigens so that secondary response is possible(same as with a vaccine-see above)

Passive Immunity:

When antibodies are obtained passively(through an outside source)

Injections of the antibodies- through a shot at birth or later

Given from mothers to children through breast milk

Passive Immunity is only TEMPORARY there are no memory B/T cells used so no recognition occurs and secondary response doesn't happen

MuddiestPoint

The section was easy to follow so far the only real question is what are protists i mean i know they are agents of disease but what makes them different from the others and how do you identify them?

Scribe 10/28/11

Hey Everyone!

Today in class Mrs.Stein checked in our homework and gave us a stamp. She went over the answers with us before we discussed the disease of the day. First, we finished Schistosomiasis from yesterday. This disease is vector born and associated with snails. It affects the urinary system. The disease of the day was Influenza. It is caused by a RNA virus. Since the flu is a virus the best way to treat it is to prevent the spread of it.

At the end of the day we set up two labs that we will be doing on Monday. In the first lab we tested three surfaces. We then swabbed the cue tip on its proper quadrant on a dish. On Monday we will be looking for bacteria in these quadrants. In the second lab we put three antibiotics in the agar. We will observe the effects of the antibiotics.

Homework!
up 13-16
up16-18

Bacteria!!!

Today we discussed BACTERIA!!! Here are the notes from class...

Bacteria Notes 10/26

View more presentations from Deb.

We also did our DISEASE OF THE DAY! Cholera is a bacterial disease that causes terrible diarrhea. The bacteria attacks the intestine prevent it from absorbing water. The result in the individual will die of dehydration within a matter of days. The disease is spread by contaminated water and is more common in parts of the world with poor sanitation. Fortunately, we have antibiotics that can treat cholera if they are administered early enough!

After our discussion of bacteria, we began a video on bacteria. It is important to remember that not all bacteria are pathogenic. Many bacteria perform countless useful tasks for us. Bacteria are used for food production, they aid in our digestion, and they play an important role in the ecosystem.

Remember... bacteria are EVERYWHERE! There are more bacteria in your body than there are cells in your body! They are tiny and they reproduce very quickly.

OUR NEXT SCRIBE WILL BE KRISTINA R

Class 10/25/11

One thing we talked about in class today was Epidemiologists (just incase anyone didn't catch this Mrs. Stein was going to be an Epidemiologist but instead she is here with us!)(An Epidemiologist is a person who studies infectious diseases.) The first Epidemiologist was a British man named John Snow. In 1854, whenever someone got an infectious disease they thought their god was putting a curse on them. But John Snow did not believe this and wondered why the disease was spreading. He made a map of his town and traced the infectious disease to the Broad Street pump, and figured out that the virus was spreading through the water.

Another thing we went over in class today was the correct answer for the lab we did about the infectious disease that went around the school by various people. Here is the correct answer:

Mr.Paek

(science class)

Heather

(drama club)

Ed(carrier)

(bus 37) (bus 37) (math class)

Mr.Wegley Laura Mrs. Dillion

We also talked about some ways to prevent from getting an infectious disease. Some ways are paying attention to your surroundings, carry around Purell, don't share drinks, and most importantly, wash your hands after you use the bathroom.

What is a VIRUS?

-may be pathogenic

-may spread quickly

-NOT a cell

-made out of protein and genetic material

-not living!

-parasites rely on a cellular(they attack cells themselves)host to exist and replicate

-genetic material is not in nucleus(DNA or RNA)

-do not metabolize (use energy) or respond to stimuli

-consist of nucleic acid surrounded by a protein coat called a capsid(protein all viruses are made of)

-genes are expressed by using the machinery of the host they infect(gene expression=making proteins

Viruses come in a variety of shapes:

1. Bacteriophage

2. Tobacco Mosaic Virus

3. Influenza Virus

SORRY THIS POST TOOK UP SO MUCH SPACE!

THE LYTIC AND LYSOGENIC CYCLES:

Class of 10/

     In class today, we talked about the deseise of AIDS. AIDS stands for Acquired Immune Deficiency Syndrome. AIDS destroys your body's ability to fight viruses by weakening and even destroying your immune system. The fist stage of AIDS is actually not called AIDS, but HIV. HIV stands for Human Immunodeficiency Virus does essentially what AIDS does just not at the same speed, or power. You can get HIV/AIDS in three different ways: HIV positive blood mixing with your blood, unprotected sex with a person who was the virus, or genetically at birth. AIDS is a problem through out the world, but especially in the continent of Africa, where an epidemic of AIDS is killing people left and right.
     

    

AIDS DESEISE ATTACKING T-CELL 

     AIDS kills people by destroying their T-Cells; an immune cell meant, and needed, to fight of deseise. Viruses that would be easily fought off, now can become deadly to the person infected. HIV/ AIDS is never technically what killed a person. It killed off the persons immune system, and then the person became sick to another virus, which they could not fight off, that killed them.