BIO220H1 Lecture : Deadly Viruses and the Evolution of Parasites
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BIO220H1 Full Course Notes
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Document Summary
Lecture 8 bio220 deadly viruses and the evolution of virulence. Ebola virus: spread via direct contact with contaminated material, through air, extremely virulent. Virulence: the additional mortality rate that a pathogen imposes on an infected individual (the host: parasites that harm their hosts thereby harm themselves, over time, the coevolution of pathogens and their host will lead to a mutualistic association. Instances of highly virulent pathogens are cases where the host-pathogen relationship is recent. Myxoma virus: to control rabbit population, virulence declined over time.