Home Coronavirus COVID-19 Study: Effectiveness of Pfizer and Moderna Vaccines Falls to 66% with Delta... Study: Effectiveness of Pfizer and Moderna Vaccines Falls to 66% with Delta Variant August 25, 2021 You are unauthorized to view this page. Username or E-mail Password Remember Me Forgot Password RELATED ARTICLESMORE FROM AUTHOR Sheinbaum Dismisses Concerns over Lake Chapala Impact from Solís–León Aqueduct VIDEO: ‘Out with Lemus’: Governor Booed at Hospital Inauguration with Sheinbaum in Tlajomulco Municipal Police Officer Arrested in US, Accused of Sexually Abusing Daughter in Jalisco ‘No Invasion’: Sheinbaum Downplays Trump Order Targeting Cartels United Airlines Restores Flights After US Nationwide Ground Stop Caused by Tech Glitch