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Antibody testing shows coronavirus infected a lot more people than previously thought

In this article written by Kari Paul for The Guardian, we are introduced to a study from Stanford University which shows that the novel coronavirus could be more widespread than previously projected. 

Extrapolating the results of the antibody tests in Sta. Clara county in California, the researchers state that the virus could be 50 to 85 times more common than the officail figures. Note that official stats in Sta. Clara shows that there are only 1,094 COVID-19 cases (at the time of writing), but the study estimated that around 48,000 to 81,000 individuals are probably already infected. 

This study is far reaching implications as health officials need to know how many people are infected in a locality in order to know far along in epidemic they are, and whether imposed lockdowns can already be lifted. 

Editor’s Note: Another implication of this research is that the official statistics on  covid-related death rate are overestimated, and the virus is not as deadly as we thought. The study is also showing the importance of the appropriate way that randomized antibody testing can be used to determine whether collective immunity is starting to manifest in a population or not.

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7 replies on “Antibody testing shows coronavirus infected a lot more people than previously thought”

[…] If we add those who are asymptomatic (typically not tested), and those who have already been infected but have developed antibodies, then the infection fatality rate will drop even more [See The Tale of Two Fatality Rates to understand the difference between case fatality rate and infection fatality rate, and why distinguishing between the two is important. Also read Antibody Testing Shows Coronavirus Infected A Lot More People Than Previously Thought]. […]

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