Hilary Koprowski

Koprowski received many academic honors and national decorations, including the Belgian Order of the Lion, the French Order of Merit and Legion of Honour, Finland's Order of the Lion, and the Order of Merit of the Republic of Poland.
Koprowski was the target of accusations in the press related to the "oral polio vaccine AIDS hypothesis", which posited that the AIDS pandemic originated from live polio vaccines developed by Koprowski in the Belgian Congo. This hypothesis was challenged on numerous grounds, and scientists largely rejected it. Provided by Wikipedia