Infectious Disease

5th block – Hunger games?

Do Now NB 150 top – 8 mins

1. Name these bacteria:a) Clusters of rod bacteria

b) Groups of 4 round bacteria

c) Chain of spiral bacteria

2. Describe these bacteria:a) Staphylobacillus

b) Streptospirillium

c) tertracoccus

Happy Wednesday - Agenda

• Infectious Disease!– Notes– Videos– Independent Practice

Thursday – Biotechnology

Friday – Quiz & video

Infectious Diseases NB 153

DISCOVER ACTIVITY-HOW DOES A DISEASE SPREAD?

Names of people you have touched today

Who might they have touched today?

infectious disease

•disease that can pass from one organism to another

•organism that can cause disease

pathogen

scientists & their ideas• showed microorganisms

cause disease

• microorganisms caused

diseases• killing microorganisms

could prevent spread of

diseases• performed surgery under

more sterile conditions

• infectious disease caused

by specific pathogen

Louis PasteurLouis Pasteur

Joseph ListerJoseph Lister

Robert KochRobert Koch

Joseph Lister using a carbolic steam sprayer to spread a mist of carbolic acid.

• In the 1800’s, surgery was performed under conditions that were very different from those used today.

• Surgery today is performed in operating rooms that have been cleaned thoroughly to eliminate disease-causing organisms.

THENNOW

4 major groups

of human pathogens

1.bacteria

2.viruses

3.fungi

4.protists

–http://medmyst.rice.edu/index.htmlhttp://medmyst.rice.edu/index.html

1. bacteria 1 celled microorganisms produce toxins (poisons) diseases caused by bacteria:

strep throat- streptococcus bacteria

tetanustetanus

Pictures Of Strep Throat Here are three pictures of strep throat. Notice the red flecks indicating a bacterial infection.

Infectious Diseases Caused by Bacteria [03:07]

2. viruses• smaller than bacteria

• cannot reproduce unless inside living cells

2. viruses

chicken poxchicken pox

• diseases caused by viruses:

– cold

– influenza (flu)

– chicken pox

The Littlest Assassins: What Are Viruses? [03:35]

3. fungi• molds, yeasts

• athlete’s foot

4. protists•malaria

The Anopheles mosquito carries the protist that causes malaria.

sources of pathogens

1.person

person

2.contaminated

object

3.animal bite

4.environment

1. person to person transfer

• thru direct physical contact–kissing, shaking hands

• thru indirect contact–sneezing

2. contaminated objects2. contaminated objects

towels

water

food

silverware

3. animal 3. animal bitesbites

rabiesrabies

The Lyme disease bacterium, Borrelia burgdorferi, normally lives in mice, squirrels and other small animals.

It is transmitted among these animals – and to humans -- through the bites of certain species of ticks.

engorged deer tickengorged deer tick

4. environment

soil waterwater

Independent Practice NB 152

• Do not write on the worksheet!

• Use notes from this week & Ch5E

• Time-> 20 minutes

• When done: Come to me and get your classwork sheet: Biotechnology!– Textbook –pgNC28-30 pros/cons

TGIF!!!!!

• Do now – NB 154– Please write1+ paragraphs about

1) I feel I learn the best by…

2) I know I need to review the following topics…

3) I feel I understand…..

Agenda:

Review yesterdays work

Video

Quiz…. I am moving to MONDAY.