Tag Archives: herd

People are getting reinfected with COVID-19. What that means for ‘herd immunity’ and vaccines

Article content continued “It very well might be very rare. But it very well might not be as rare as we think. We just need a better surveillance system for it.” From a public health perspective, “People who have had COVID-19 should behave and be treated as if they had not had the virus,” Pandori… Read More »

Drop in Brazilian coronavirus cases prompts herd immunity questions

An unexpectedly positive turn for Brazilian cities once plagued with the coronavirus pandemic is raising fresh questions about herd immunity. A new report in The Washington Post described how the impoverished city of Manaus saw hospitalizations plummet even though it had never imposed a lockdown or taken the other drastic containment measures imposed in Asia… Read More »