The director of the Centers for Disease Control and Prevention (CDC) said an annual COVID-19 booster shot is not anticipated, although the CEO of Pfizer several months ago said otherwise. When asked about the need for annual booster doses, Director Rachelle Walensky said, “I don’t want to say never, but we are not necessarily anticipating that you will need this annually.” “It does look like after this third dose you get a really robust response, and so we will continue to follow the science both on the vaccine side but also on the virus side,” she said during a CBS News interview on Thursday morning. On Wednesday, Walenksy and other federal health agency chiefs said during a joint news conference that they will recommend boosters to individuals who received their second COVID-19 mRNA vaccine dose after eight months, starting Sept. 20. The CDC and Food and Drug Administration (FDA) have …