Currently, there are two influenza B lineages circulating; in the latest WHO recommendations, it is suggested that a second B strain could be added to give a quadrivalent vaccine. The history of ...

We assessed an inactivated quadrivalent influenza vaccine (QIV) containing both B lineages versus TIV in young children. Methods Children aged 18–47 months who had received 2 doses of TIV in a ...

Changes to both schedules include new and updated recommendations for COVID-19 vaccine, change to trivalent influenza vaccines ...

This type of vaccine is also known as a quadrivalent influenza vaccine. INFLUVAC TETRA is used to prevent certain types of influenza (commonly called the flu) and can be used in adults and ...

Recommended influenza vaccines have been changed from the quadrivalent to the trivalent formulation. A. Patricia Wodi, M.D., also from the CDC, and colleagues issued the ACIP-approved "Recommended ...