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3 answers

Because I don't know anyone willing to test the vaccine made up of dead HIV virus. Since it is a human virus, it could only be tested on humans.

2006-11-01 14:37:33 · answer #1 · answered by chimodzimodzi 2 · 0 0

They havent made a shot that for sure keeps anyone from getting the flu either.

2006-11-01 14:46:52 · answer #2 · answered by roamin70 4 · 0 0

DIFFERENT VIRUS DIFFERENT RESISTANCE TO TREATMENT, SOME VIRUSES ARE ALMOST INDESTRUCTIBLE.

2006-11-01 14:41:05 · answer #3 · answered by woodtigerdp 3 · 0 0

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