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 InfectionsSmall 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