Study: World's population is a long way from 'group immunity'

New research trying to estimate the actual number of new coronavirus infections shows that the world's population is still a long way from achieving so-called "group immunity"the New York Times reported that according to these studies, the proportion of the world's population infected with the new coronavirus virus is still at the unit level, and experts believe that only 60 to 80 percent of people are infected and produced antibodies, the population of one place can have a group of immunization against the new coronavirusthe vast majority of people remain vulnerable, even in the worst-hit cities, thestudy notesIn New York City, the hardest-hit city, about 20 percent of people in the until early May were infected with the new coronavirusIn countries such as Sweden and the UK, the rate of infection is between 7 and 17 per centMichael Mina, an epidemiologist at the Harvard School of Public Health, said the combined findings suggest that people are less likely to be immune to the new coronavirus in groups any time soon"Honestly, in the short term, we don't have a good way to safely build group immunity, " saysMinaUnless we let the virus spread again, but I think society has decided that this is not the means we can use"
all scenarios for population immunization have assumed that people infected with the new coronavirus will be protected from secondary infectionsThere is evidence that infected people do have immunity to the virus, but it is not clear whether everyone will develop immunity, and how long immunity can lastalso, even if mass immunization is achieved, some people will still be infectedMina points out that group immunity is like a "firewall" but can slow the spread of the virus (
Bio valley Bioon.com)