
The cold and flu season of 2022 has begun with a vengeance. Viruses that have been unusually scarce over the past three years are reappearing at remarkably high levels, sparking a “tripledemic” of COVID-19, the flu and respiratory syncytial virus, or RSV. This November’s national hospitalization levels for influenza were the highest in 10 years.
We are infectious disease epidemiologists and researchers, and we have spent our careers focused on understanding how viruses spread and how best to stop them.