50 years ago, a flu pandemic spurred vaccine research
Excerpt from the September 21, 1968 issue of Science News
![1968 Hong Kong pandemic flu strain](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/09/080618_cm_50ya_flu_feat.jpg?fit=860%2C460&ssl=1)
MAKING THE ROUNDS The influenza strain responsible for the Hong Kong flu pandemic of 1968, called H3N2 (shown here in a colorized microscope image), was also responsible for 2017–18’s severe flu season.
Dr. Fred Murphy/CDC, adapted by E. Otwell