The CEO of Pfizer says there's a possibility people are going to need a third dose of the COVID-19 vaccine - and Connecticut officials are not surprised, as they believe it could be treated like the annual flu shot.
Pfizer says that a third dose may be needed at the six to 12-month mark. Officials say that different variants developing year to year could require an annual shot.
Infectious disease specialist Dr. Zane Saul, with Bridgeport Hospital, says the vaccine is effective but immunity lasts approximately six to seven months and we need ongoing protection.