A researcher says three hundred fortythree thousand AIDS deaths in South Africa in the last ten years could have been prevented. Nicoli Nattrass blames the former government of Thabo Mbeki for delays in providing antiretroviral drugs. She directs the AIDS and Society Research Unit at the University of Cape Town School of Economics. Her study is in the journal African Affairs. She says the former president and his health minister scared people away from the drugs which suppress H.I.V. The former