How does the flu virus infect humans from an animal host? O An influenza virus gains new sequences of DNA from another virus, such as a herpesvirus; this enables it to be transmitted to a human host. The flu virus in a pig is mutated and replicated in alternate arrangements so that humans who eat the pig products can be infected. A flu virus from a human epidemic or pandemic infects birds; the birds replicate the virus differently and then pass it back to humans. An animal such as a pig is infected with more than one virus, genetic recombination occurs, the new virus mutates, the virus is passed to a new species such as a bird, and the virus mutates again and can now be transmitted to humans.
How does the flu virus infect humans from an animal host? O An influenza virus gains new sequences of DNA from another virus, such as a herpesvirus; this enables it to be transmitted to a human host. The flu virus in a pig is mutated and replicated in alternate arrangements so that humans who eat the pig products can be infected. A flu virus from a human epidemic or pandemic infects birds; the birds replicate the virus differently and then pass it back to humans. An animal such as a pig is infected with more than one virus, genetic recombination occurs, the new virus mutates, the virus is passed to a new species such as a bird, and the virus mutates again and can now be transmitted to humans.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:How does the flu virus infect humans from an animal host?
An influenza virus gains new sequences of DNA from another virus, such as a
herpesvirus; this enables it to be transmitted to a human host.
The flu virus in a pig is mutated and replicated in alternate arrangements so that
humans who eat the pig products can be infected.
A flu virus from a human epidemic or pandemic infects birds; the birds replicate the
virus differently and then pass it back to humans.
An animal such as a pig is infected with more than one virus, genetic recombination
occurs, the new virus mutates, the virus is passed to a new species such as a bird, and
the virus mutates again and can now be transmitted to humans.
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