Test of 2nd AIDS Vaccine OKd

The Food and Drug Administration said today that it approved a request by the New York-based drug firm Bristol-Myers Co. to test human volunteers with a potential vaccine against AIDS. The bioengineered vaccine is the second to be approved for testing on humans by the agency. The first, made by MicroGeneSys Inc. of West Haven, Conn., was approved Aug. 18. The news drove Bristol-Myers’ stock up $1 to $42 in brisk trading on the New York Stock Exchange today.