Study: COVID Vaccines Less Protective Against Delta Infection, But Still Reduce Risk By Two-ThirdsThe study is in line with others from the US and around the world showing Delta's increased tendency to cause largely minor infections among fully vaccinated people.
Delta Variant Making It Harder To Reach COVID-19 Herd ImmunityBecause the Delta variant spreads so easily, some believe that percentage for COVID-19 herd immunity is now closer to 80%, perhaps even as high as 90%.
Large Outdoor Events Like Concerts Remain Safe Despite COVID Concerns, Experts SayConcerts are returning to places such as Fenway Park as health officials warn of concerns surrounding the COVID Delta variant.
'Masks And Vax Required': Some Massachusetts Businesses Taking COVID Precautions Into Own HandsSome Massachusetts businesses are requiring customers to wear masks, or in some cases show their vaccination card.
CDC Says 'Pivotal Discovery' In Provincetown COVID Cluster Led To Mask Guidance Change For Fully Vaccinated PeopleCDC Director Rochelle Walensky confirmed Friday that the agency relied on data from the Provincetown COVID cluster to update its guidance for fully vaccinated people to start wearing masks again in some indoor settings.
Pfizer Data Suggests Third Dose Of COVID-19 Vaccine 'Strongly' Boosts Protection Against Delta VariantNew data from Pfizer claims a third dose of its' COVID-19 vaccine can "strongly" boost protection against the Delta variant, beyond the protection from the standard two doses.
Stock Market Plummets Amidst Growing Fears Of COVID's Delta VariantDoes the huge drop in the Dow Jones and other indices mark the end of a historic run that dates back to the pandemic's early days?