This year the flu came in two waves – here’s why
- Written by Patricia L. Foster, Professor Emerita of Biology, Indiana University

The just-ended 2018-2019 flu season was relatively mild compared to the last season, during which nearly 80,000 people in the U.S. died of flu-related illness, according to estimates by the U.S. Centers for Disease Control and Prevention.
This year’s death toll is...