The U.S. Centers for Disease Control and Prevention has approved the expansion of the Pfizer COVID booster shot for teens aged 12 to 15-years-old. The Food and Drug Administration green-lit the usage on Monday, and the CDC's recommendation followed on Wednesday. CDC director Rochelle Walensky said in a statement, "This booster dose will provide optimized protection against COVID-19 and the Omicron variant." The CDC's Advisory Committee on Immunization Practices overwhelmingly recommended the Pfizer booster be given to younger teens five months after their second dose.