Home Coronavirus COVID-19 China Study: Neither Sinovac nor Pfizer Vaccines Effective Against Omicron China Study: Neither Sinovac nor Pfizer Vaccines Effective Against Omicron December 16, 2021 You are unauthorized to view this page. Username or E-mail Password Remember Me Forgot Password RELATED ARTICLESMORE FROM AUTHOR Senate Passes Legislation Enshrining Animal Welfare in Constitution Alfaro Reaffirms Push for New Fiscal Pact Following Sheinbaum’s Criticism Mexican Congress Takes First Step to Eliminate Watchdog Agencies Sheinbaum Responds to Jalisco’s Proposal to Exit Fiscal Pact Days Before Leaving Office, Alfaro Proposes Jalisco’s Exit from Fiscal Pact