COVID-19 A 900-person Covid delta cluster in Massachusetts includes 74% vaccinated people Mark Frauenfelder
reality bites "Ok Doomer" Substack gives you the news most people don't want to hear Jennifer Sandlin
covid CDC shortens recommended Covid quarantine time to 5 days, after airlines tell it to Rob Beschizza
New data: You have a one in 5,000 chance every day of getting a breakthrough COVID-19 infection (or maybe even one in 10,000) David Pescovitz
