Home Coronavirus COVID-19 Pfizer: 4th Dose of Covid-19 Vaccine Necessary Pfizer: 4th Dose of Covid-19 Vaccine Necessary March 14, 2022 You are unauthorized to view this page. Username or E-mail Password Remember Me Forgot Password RELATED ARTICLESMORE FROM AUTHOR US Homeland Security Secretary Outlines Trump’s Demands for Mexico to Avoid Tariffs California-Mexico Border Sees Dramatic Drop in Crossings Mexican Peso Weakens After Trump Announces Auto Tariffs U.S. Deploys Second Warship Near Mexico as Border Security Tightens How Trump’s New Tariffs Will Impact Mexico’s Auto Industry