HLSC 1F90 Lecture Notes - Lecture 21: Lady Mary Wortley Montagu, Smallpox Vaccine, Innate Immune System
15 Mar 2016
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Document Summary
Immunology is a team efort: many diferent players interacing to achieve. Physiological mechanisms that humans and other animals use to defend their bodies from invasion by other organisms, without harming themselves. Historically, observaions of survivors or epidemic disease that were apparently untouched (immune) when faced with the same infecious disease again at a later ime. (eg. measles outbreak on an island) These infecious diseases are cause by microorganisms (pathogens, bacteria, viruses ect) Advantage of reproducing and evolving much more rapidly than their human hosts. Pit enormous populaions of its species against individual human. In response, the human body invests heavily in cells dedicated to defense, which collecively form the immune system. In the absence of a working immune system, even minor infecions can take hold and prove fatal. Without intensive treatment, children born without a funcional immune system die in early childhood from the efects of common infecions.
