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Lecture 6

Lecture 6


Department
Biology
Course Code
BIOL 2900
Professor
Mordechay Anafi
Lecture
6

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Feb. 8, 2012 Part 3- The Immune System
*Not in Test 1
Basic Concepts in Immunology:
Defense from Infectious Disease
Infectious Disease and Host Defense
Immunology is the study of our protection form and response for foreign invading organisms
and altered host cells.
Viruses
In many cases, activating the immune system is the only way to fight the disease
Polio: we have good immunization for polio, not as much as good drugs
Bacteria
Immunity
(Host defense
mechanisms)
Allergy
Autoimmune disease
Acute inflammation-sepsis
Chronic inflammation- cancer

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Feb. 8, 2012 Part 3- The Immune System
Syn- ergism between antibiotics and
the immune system
Treatment is sufficient if host
defense mech-
anisms can
take care of the residual cells
Immunity
(Host defense
mechanisms)
:(
Disease
Infection
amt of microbes
virulence Immunity
host defense
mechanisms
Allergy
Autoimmune disease
Acute inflammation-sepsis
Chronic inflammation- cancer
=(
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Feb. 8, 2012 Part 3- The Immune System
Balance Between Infection and Immunity
No Disease
Infection :) Im-
munity
Infection and Immunity: Breaking the Balance
Disease
Infection
amount of microbes (increase),
virulence (increase)
Our Immune System- An Introduction
Video
3 basic lines of defense against pathogens
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