by Issam AHMED Agence France Presse WASHINGTON, United States (AFP) — The United States authorized the Pfizer and Moderna Covid vaccine boosters for all people aged 18 and older on Friday, as the world’s hardest-hit country enters a new winter wave of the pandemic. Boosters were previously available to the immune compromised, people over 65, those at high risk of severe disease, and people in high risk occupations. The new decision “helps to […]