Though the CDC recommends that people get a flu vaccine by the end of October, “getting vaccinated later, however, can still be beneficial and vaccination should continue to be offered throughout the flu season, even into January or later.” Check out the agency’sFluView sitefor more nation...
Infectious disease experts expected this shift in mild illness, given that “virtually everyone has either experienced COVID infection or vaccination or both,” Schaffner said. “We all have a certain level of immunity, and when we encounter the virus, we're better prepared to fend it...
Seasonal influenza virus A/H3N2 is a major cause of death globally. Vaccination remains the most effective preventative. Rapid mutation of hemagglutinin allows viruses to escape adaptive immunity. This antigenic drift necessitates regular vaccine updates. Effective vaccine strains need to represent H3N2 ...