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医学免疫学
Introduction to
Immunology
The real world: dancing with
microorganisms
fungi
bacteria
• We live surrounded by
microorganisms, many of
which cause disease.
parasite virus
The bacteria on a needle point
The picture about black death plague
( )
th th th
6 century AD (520~565 )、14 century AD (1346~1665)、19 century
(1894~1920): 3 times pandemic, death population: 25M~100M
Pulmonary tuberculosis patient
Fungi infection in the skin
Roundworm infection
A victim of smallpox
Acquired immunodeficiency
syndrome, AIDS
Human immunodeficiency
virus, HIV
Pneumocystis carinii CMV infection Kaposi’s tumor
SARS: severe acute respiratory syndrome
H7N9 Bird flu and MERS
MERS: middle east respiratory syndrome
Zika virus infection has rapidly
emerged as a global threat
Microcephaly cases
• Despite this continual exposure to microorganisms we
become ill only rarely.
• How does the body defend itself?
• When infection does occur, how does the body eliminate
the invader and cure itself?
• And why do we develop long-lasting immunity to many
infectious diseases encountered once and overcome?
•…………
• These are the questions addressed by immunology.
Immunology
• The study of the way in which the body
defends itself against invading organisms or
internal invaders (tumors).
• The study of the body’s defense against
disease, especially infectious disease.
• Contributing critical tools for research,
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