HLTB22H3 Lecture Notes - Lecture 6: Mucous Membrane, Lyme Disease, Obligate Parasite
5 Dec 2018
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Document Summary
Not research paper, angle, personal, coherent, current, relevant. Physical barriers: chemical barriers, 2nd line of defence. Pyrogens: 3rd line of defence, antibody mediated, cell mediated, 1. Specific defences dif cells of defence: 6. Withdrawal: ^on final, pathogens, microbial world, increase in noncommunicable diseases chronic, internal agencies relate to chronic conditions, infectious diseases still cause significant amt of deaths globally. Pathogens: disease causing organisms, include: bacteria, viruses, protozoans, fungi, parasitic worms & prions, virulence, relative ability of pathogen to cause disease, determined by: Viruses: responsible for many human illnesses, not considered living organisms, structure, much smaller than bacteria, genetic material (dna or rna) surrounded by protein coat capsid. Some have inner envelope studded w/ glycoproteins: attachment, penetration, production of viral genetic info & proteins, assembly of new viruses, release, steps in viral replication, can"t replicate outside of host cells obligate parasite, some viruses cause cancer. Symptoms of disease depend on which cells are killed.
