Six people have been infected by Covid-19 in addition to every one person who got a positive Covid test says large Emory University study of USA from October 2020.
The study found that people living in metropolitan areas were 2.5 times more likely to have been infected than those living in non-metropolitan areas.
Also, people who are Black and Hispanic were more likely than whites to have experienced SARS-CoV-2 infection (2.2 times and 3.1 times more, respectively). Roughly one in six of those infected at some point had been diagnosed with COVID-19 and reported to health departments, based on comparison with CDC reports.
In addition, in a survey of participants' attitudes toward vaccination, the study found that 32 percent said they were unsure or unwilling to receive a COVID-19 vaccine. Vaccine willingness was measured with a 5-point scale. The overall findings were: 12 percent Very Unlikely, 7 percent Somewhat Unlikely, 13 percent Unsure, 19 percent Likely, and 50 percent Very Likely.
Many population groups at higher risk for SARS-CoV-2 infection were more likely to be unsure or unwilling: Black vs White (46 vs 30 percent), people working outside the home vs those working at home (38 vs 21 percent) and smokers vs nonsmokers (44 vs 29 percent).
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As of today there is just short of 30 million confirmed by test USA cases. 30 x 6 = 180 million USA residents had Covid but took no test.
In addition to the above numbers, 32 million USA citizens have now completed 2 vaccine shots.
So roughly 240 million USA citizens have some immunity. About 72%
Herd Immunity should be near if above numbers are approximately true.
