In 1963, scientist Maurice Hilleman collected a mumps virus sample from his five-year-old daughter Jeryl Lynn. Researchers weakened the virus to develop a vaccine, which was approved in 1967. The vaccine, based on the Jeryl Lynn strain, remains in use and helped transform the fight against mumps in the US. In 1963, scientist Maurice Hilleman collected a mumps virus sample from his five-year-old daughter Jeryl Lynn. Researchers weakened the virus to develop a vaccine, which was approved in 1967. The vaccine, based on the Jeryl Lynn strain, remains in use and helped transform the fight against mumps in the US.
