Tadeusz “Tad” Wiktor

1920 – 1986 (65 years old)

Poland/United States

Year of great discovery/work

The original rabies vaccine developed by Louis Pasteur in the 19th century, which was made from rabbit spinal cord cells, required daily inoculations for three weeks, and sometimes caused serious side effects. But in the 1960s, Wiktor was able to grow the rabies virus in human cells, fully inactivate it, and develop a better rabies vaccine.

Did you know?
Wiktor lived or worked on four different continents (North America, Africa, Asia, and Europe).