Use the drop-down menus to select the answer that completes each sentence The
v mandates that drugs must be shown to be safe and effective to
✓ before they can be prescribed
is an exception that allows nonapproved drugs to be prescribed under limited
circumstances.
Drug manufactures use
to demonstrate the safety and efficacy of drugs
After a drug is approved, it may be prescribed for
under the supervision of a physician.
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Which of the following best reflects what we know about how the flu virus moves between species? a) the flu virus in a pig is mutated and replicated in alternate arrangements so that humans who eat the pig products can be infected.b) a flu virus from a human epidemic or pandemic infects birds; the birds replicate the virus differently and then pass it back to humans.c) 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.d) 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.