Mary Lou Clements-Mann ( September 17 , 1946 &ndash; September 2 , 1998 ) was the longtime head of the Division of Vaccine Sciences at the Johns Hopkins Bloomberg School of Public Health , and is well known for her knowledge and work in HIV and AIDS . She died in the 1998 crash of Swissair Flight 111 with her husband , Jonathan Mann
crash of Swissair Flight 111
Swissair Flight 111
Mary Lou Clements-Mann