infectious diseases & the immune system. what is infectious disease o any disease that is caused...

Infectious Diseases & The Immune System

What is infectious disease

O Any disease that is caused by an agent/pathogen (virus, bacteria, etc.) that can pass from one living thing to another. If it’s contagious, it can be passed directly from one person to another.

O Patho=disease, gen=producerO Disease=any condition that

interferes with proper functioning of the body & mind

Infections Spread By…DIRECT CONTACT

INDIRECT CONTACT

WHAT ARE SOME THINGS YOU CAN DO TO STOP THE SPREAD OF COMMUNICABLE

DISEASES?

Is it Viral or BacterialCommon Viral Infections

Common Bacterial Infections

O ColdO FluO HepatitisO MonoO Pneumonia,

BronchitisO Pink eyeO Meningitis

O BronchitisO PneumoniaO Pink EyeO TuberculosisO SinusitisO Strep ThroatO Meningitis

Treatment for Bacterial Infections

(Strep, pink eye, pneumonia, sinusitis, etc.) – antibiotics

Viral Infections

Small particles that consists of

genetic material. Viruses can not

reproduce on their own, but need a

“host” cell.

TREATMENT:o There is no

treatment once you are infected with a virus.

o You can prevent however…

o Vaccines are available for “some” viruses

o Prevention is the key

How are bacterial infections different

from viral infections?

YOUR BODY’S DEFENSE SYSTEM…

WHAT ARE SIGNS & SYMPTOMS OF INFECTION…

PREVENTION:What are some other ways to prevent getting sick?

What is the function of the immune system?

What is a contagious period?

http://www.youtube.com/watch?v=qKq3hOgC8YE

IMMUNE SYSTEM RESPONSE TO AN INVADING GERM/VIRUS

http://app.discoveryeducation.com/search#N=18342+4294924904&No=0&Ne=4294925432&Ntk=All&Ntx=mode+matchallpartial&Ns=p_wtd|1

http://app.discoveryeducation.com/player/view?assetGuid=F992012F-21A0-45EC-8CF7-AE7B8B48A385Immune System (23 min.)

Osmosis jones clip (3)

Flu virus (5 min.)

CONCEPT MAPPINGLink the following vocabulary words to illustrate how the body defends itself against infectious diseases.

T cells, virus-infected cells, macrophages, B cells, antibodies, immune system, physical barriers, skin, defense system, tears, saliva