Biology 1201A Chapter Notes - Chapter 23: Viral Envelope, Influenza Vaccine, 1918 Flu Pandemic
5 Apr 2018
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Chapter 23 viruses, viroids, and prions infectious biological particles. At any given time, 5 to 15% of the global population of people exhibits the symptoms of influenza. Colin russell of cambridge university and his colleagues analyzed 13,000 human influenza a viruses of the h3n2 subtype by collecting viral material from infected ppl on. Their analysis revealed almost continuous circulation of h3n2 in east and southeast asia. This regional network of overlapping epidemics appeared to be the source of influenza outbreaks elsewhere in the world. Knowing which strains cause the initial outbreak in asia allows scientists to formulate vaccines to target these strains, offering people in other regions some protection from the illness. Vi(cid:396)uses a(cid:396)e(cid:374)"t sho(cid:449)(cid:374) o(cid:374) the t(cid:396)ee of life. This is (cid:271)/(cid:272) the(cid:455) la(cid:272)k (cid:373)a(cid:374)(cid:455) of the p(cid:396)ope(cid:396)ties of life sha(cid:396)ed (cid:271)(cid:455) all o(cid:396)ga(cid:374)is(cid:373)s a(cid:374)d so a(cid:396)e(cid:374)"t considered to be living organisms.
