​Today, CDC Director Mandy Cohen endorsed the CDC Advisory Committee on Immunization Practices’ (ACIP) recommendation for people 65 years and older and those who are moderately or severely immunocompromised to receive a second dose of 2024-2025 COVID-19 vaccine six months after their first dose. Today, CDC Director Mandy Cohen endorsed the CDC Advisory Committee on Immunization Practices’ (ACIP) recommendation for people 65 years and older and those who are moderately or severely immunocompromised to receive a second dose of 2024-2025 COVID-19 vaccine six months after their first dose.