Birthdays linked to spread of Covid in areas with high transmission The GuardianUnhappy Birthdays | Harvard Medical School Harvard Medical SchoolChildren's birthday parties may have fueled COVID-19 spread, study finds msnNOWWe studied COVID-19 cases after birthdays. Family gatherings can still be dangerous. USA TODAYBirthdays and COVID-19: New Analysis Reveals a Link SciTechDailyView Full Coverage on Google News