Home Coronavirus COVID-19 Study: Not Even 2 Doses of Single-Dose Sinovac Vaccine Works Against Coronavirus... Study: Not Even 2 Doses of Single-Dose Sinovac Vaccine Works Against Coronavirus Omicron Variant December 15, 2021 You are unauthorized to view this page. Username or E-mail Password Remember Me Forgot Password RELATED ARTICLESMORE FROM AUTHOR Jalisco Strengthens Global Ties Through Tech, Tequila, and Tourism Sheinbaum and Trump Hold Phone Conference U.S. to Impose 21% Tariff on Mexican Tomatoes Starting in July UNAM: Bright Object in the Sky Was a Bolide, Not a Meteorite or Space Launch Sheinbaum Addresses Water Dispute and Incoming U.S. Ambassador