was a visiting professor for a year at the University of London's St George's Medical School. Around that time, he was a visiting fellow for a year at the Centers for Disease Control's Division of Viral and Rickettsial Diseases in Atlanta. Pereira worked with Roger Glass on characterizing unusual picobirnaviruses found in the feces of HIV patients in Brazil. He died of heart failure on August 16, 1994. Personal life In 1946 Pereira married Marguerite "Peggy" Scott, daughter of William McDonald Scott (a senior medical officer at the UK Ministry of Health and co-founder of the Public Health Laboratory Service), and granddaughter of French Republic senator Antoine Mollard. They had one son and two daughters. Influenced by his parents, their son Raul Scott became an immunologist. Pereira was known as a man of "infectious good nature". For the March 1994 issue of Archives of Virology, Mahy and Murphy wrote: "His legacy is grounded in his unstinting good nature - his gentleness and warmth, his smile and sense of humor, his caring nature - and his great capacity for building lifelong friendships with so many virologists working in so many disciplines. His legacy is capped off by his many scholarly contributions to science and human welfare and to the affairs of the world's virologic community". Honours Associate Founding Fellow of TWAS 1973 Fellow of the Royal Society 1975 Fellow of the Institute of Biology 1987 Carlos Findlay Prize, UNESCO Appointments Member, Governing Body of the Animal Virus Research Institute Member, Committee on Immunological Products Control Member, Council of the Society for General Microbiology Member, Executive Committee of the International Committee for the Nomenclature of Viruses Chairman, Vertebrate Virus Subcommittee of the International Commission for the Nomenclature of Viruses Vice-Chairman, International Committee for the Taxonomy of Viruses; Life Member Member, WHO Expert Advisory Panel on Virus Diseases Member, WHO Animal Virus Characterization Board Member, Ad Hoc Committee on Non-Oncogenic Viruses of INSERM Member, Scientific Advisory Committee of the Pan American Foot and Mouth Disease Center References 1918 births 1994 deaths Brazilian biochemists Brazilian virologists Fellows of the Royal Society People from Petrópolis Brazilian expatriates in the United Kingdom