In fact, the new coronavirus may have existed in the United States in 2019
The National Institutes of Health (NIH) reported on June 15, 2021 that 'as of December 2019, the new coronavirus (SARS-CoV-2) was present in the United States.' Announced. 'The importance of using multiple blood test methods has been demonstrated,' the researchers said, as public health officials did not detect early infections.
Antibodies to SARS-CoV-2 in All of Us Research Program Participants, January 2-March 18, 2020 | Clinical Infectious Diseases | Oxford Academic
NIH study offers new evidence of early SARS-CoV-2 infections in US | National Institutes of Health (NIH)
https://www.nih.gov/news-events/news-releases/nih-study-offers-new-evidence-early-sars-cov-2-infections-us
NIH analyzed blood samples collected under the All of Us Research Program , a research program initiated in 2015, to identify early cases of COVID-19 infection. More than 24,000 blood samples provided by program participants in 50 states across the United States between January and March 18, 2020 were used as samples. Two antibody test kits developed by American pharmaceutical company Abbott and German Euroimmun were used to detect the virus in blood samples.
Analysis of blood samples collected in early 2020 revealed antibodies to SARS-CoV-2 in nine samples. All of these sample providers were said to have lived in areas other than the big cities such as Seattle and New York, where SARS-CoV-2 was brought to the United States. We also know that most samples were taken before the first case of COVID-19 was reported in the state.
The test kits used in this study all test for antibodies to SARS-CoV-2. Antibodies did not appear until two weeks after infection, and antibodies were found in samples collected from January 7-8, 2020, so in Illinois and Massachusetts where the samples were collected. , It is suggested that SARS-CoV-2 had already spread by the end of December 2019.
However, in addition to the problem that the sample size is small in this study, it is also pointed out that 'it is unknown whether the provider was infected with SARS-CoV-2 locally or during travel'.
'This study highlights the value of longitudinal research in understanding the dynamics of emerging infectious diseases such as COVID-19,' said Josh Denny, CEO of the All of Us Research Program. It became. '
Keri Althoff of the Johns Hopkins Bloomberg School of Public Health, the lead author of the paper, said, 'Public health authorities have spread SARS-CoV-2 due to the limitations of the initial testing system in the United States. It turns out that we didn't see it, which demonstrates the importance of using multiple blood testing platforms, as recommended by the American Center for Disease Control and Prevention (CDC). '
The All of Us Research Program will publish detailed information from further analysis in the future, and will provide sample providers with the opportunity to explain the results individually.
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