EESA10H3 Lecture 7: EESA10H3 Lecture 7

• School: UTSC
• Department: Environmental Science
• Course: EESA10H3
• Professor: Silvija Stefanovic

Document Summary

Immune system: disti(cid:374)guishes (cid:862)self(cid:863) fro(cid:373) (cid:862)foreig(cid:374)(cid:863: active immunity: on first exposure to antigen, body produces antibodies, vaccination, antigen preparation: activity immunity (takes time, antibody preparation: passive immunity (will give us protection fast, herd immunity: practical protection. 3: some important types of pathogens, bacteria, tuberculosis, anthrax, plague, viruses, yellow fever, hiv, bird flu, west nile virus, protozoa, malaria. Bacterial diseases: tuberculosis: (cid:894)tb(cid:895) is o(cid:374)e of the (cid:449)orld"s deadliest diseases, o(cid:374)e third of the (cid:449)orld"s populatio(cid:374) is i(cid:374)fe(cid:272)ted (cid:449)ith tb. In 2011, nearly 9 million people around the world become sick with tb disease. Infection of lungs: from person (or animal) to person through the air, complication of bubonic plague, 3. Viral diseases: yellow fever, caused by virus, mosquitoes transmit yellow fever. 5: first phase of symptoms: fever muscle pain, backache, headache, and vomiting, 85% of victims recover after the first phase, other u(cid:374)fortu(cid:374)ate (cid:448)i(cid:272)ti(cid:373)s de(cid:448)elop the (cid:862)to(cid:454)i(cid:272)(cid:863) phase (cid:449)ith.