Published in Vaccine Weekly, May 19th, 1997
Prototype vaccines based on simian immunodeficiency virus (SIV) can protect primates against infection with AIDS-causing SIV strains - including strains not used in the vaccine. Animals that do become infected have much lower viral loads and, so far, have not developed AIDS symptoms.
None of the more than 40 candidate HIV vaccine strategies now being evaluated in human trials have shown such broad protection in primate studies. But neither are any of these strategies potentially as risky.
Unlike other live attenuated...
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