#1: "My skin is extremely sensitive to UV sun rays. If I don't stay out of the sun, I will get a horrible sunburn that will
literally break down my skin. I sort of feel like a vampire."
n
#2: “As a child I was bitten by a mosquito and it gave me a
condition where I have extreme swelling in my legs and
genitalia. I never leave my house because I feel like a circus
freak.”

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.