Messana Eat right Clean house Wash hands Get enough exercise & sleep Proper health care ...

Microbes & DiseaseSOOOOOOOO…Just to

RECAP Messana

Eat right Clean house Wash hands Get enough exercise & sleep Proper health care **Use DIFFERENT KNIVES for cutting

meats & vegetables & CLEAN cutting board w/ distinfectant

What can we do to be healthy?

An Epidemiologist is a scientist who studies diseases

including how they start, spread and how they are treated.

Who Figures All of This Out?

• Body must fight off virus on its own!• Vaccinations can help

used to control spread of viral diseases a solution that contains weakened virus

particles is injected into body body makes antibodies against that virus** Viruses MUTATE from year to

year producing new strains SO..vaccines YEARLY!!

Viral Infections

http://www.youtube.com/watch?v=Rpj0emEGShQ

How a Virus Attacks a Cell…

1) LOCK & KEY 2) Duplication of DNA/RNA within the nucleus

3) When cell is “BUSTING AT THE SEAMS” with the duplicated virus…

VIRUS BURST OUT…spreading throughout your body…

and U…Lil Darling…ARE SICK!!!!

3 “KEY” STEPS for VIRAL REPRODUCTION

The single biggest threat to man’s continued dominance on the planet is the virus” – Joshua Lederberg, Ph.D

How a Virus Changes the World… http://www.takepart.com/sites/default/files/c

ontagion/index.html#&slider1=1

Fun Fact:Clean skin has about 20 million bacteria per square inch…

What process do bacteria use to reproduce/replicate?

Bacteria Reproduction Video Clip http://www.youtube.com/watch?v=gEwzDyd

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Basic Bacteriology

Parasites…

http://www.youtube.com/watch?v=V2Ac6RYSvo8

https://www.youtube.com/watch?v=ebjG6N7JIQs

https://www.youtube.com/watch?v=EevqmzkGJaE

Parasites

Contagions – capable of being spread by direct or indirect contact (in other words…contagious

Contagion Clip http://www.youtube.com/watch?v=Z7yL5DF

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Contagions

4 main ways that pathogens are transferred:◦Person to person

◦Food and water

◦Environment

◦Animals

How do pathogens spread?

Moist◦ A lot like water

Average temperatures◦ Not too hot or too cold (EXTREME)

Limited exposure to fresh air◦ More ability to reproduce

Sunlight◦ Good for some, bad for others

Food sources◦ Sugars or decaying material

Environments for “SURVIVAL”

RegionalKnown disease that infecting more

individuals than usual

GlobalLarge % of individuals infectedUsually viralNew disease to humans

Compare & Contrast Epidemics & Pandemics

https://www.youtube.com/watch?v=UG8YbNbdaco

Epidemics & Pandemics

Each person will receive a test tube and a syringe

You will carefully go around the room and trade fluids with 3 other people using your syringe

When completed, sit down and write down who you traded with first, second and third

Finding Patient Zero

Purple/clear = Negative

Blue/green = Positive

Finding Patient Zero