
The surge in pertussis is likely a result of a return to pre-pandemic infection patterns coupled with waning immunity from previous vaccination, CDC says.
The surge in pertussis is likely a result of a return to pre-pandemic infection patterns coupled with waning immunity from previous vaccination, CDC says.
FluMist is the first influenza vaccine that does not have to be given by a health care professional.
Ziyad Al-Aly, MD, and colleagues link 70% of the drop in cases to vaccine availability but caution the risk for long COVID remains significant.