drsnm
Forum Junior
Topics: 12
Posts: 28
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Poliovirus can be grown in cultured monkey kidney cells through repeated passages , resulting in virus that is no longer neurovirulent. This virus can be used as a vaccine because it has become A) attenuated
B) defective
C) inactivated
D) latent
E) recombinant
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| study_ing
Forum Fanatic
Topics: 180
Posts: 2,510
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a
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| nadiabarati
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how just culturing a virus makes it attenuated?!!!
how about choice B?
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| Slacker
Forum Elite
Topics: 29
Posts: 141
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e
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| nadiabarati
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slacker plz explain ur answer
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| robin082006
Forum Hero
Topics: 471
Posts: 5,123
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A
Multiple cultures of virus or bacterium in other species's organs decrease its activities and toxicity in human bodies.
e.g. BCG is Myco. Tuberculosis cultured 23-30 times
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| nadiabarati
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How just culturing make the virus attenuated? I'm really surprised. What's the rational behind it?????
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