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Weekly confirmed COVID-19 deaths Map of cumulative COVID-19 death rates by U.S. state [8] On December 31, 2019, China announced the discovery of a cluster of pneumonia cases in Wuhan. The first American case was reported on January 20, [9] and Health and Human Services Secretary Alex Azar declared a public health emergency on January 31. [10]
At-home COVID tests “work as well as they always have”—even on new variants like “Pirola” BA.2.86, “Eris” EG.5.1, and “Fornax” FL.1.5.1, Dr. Amesh Adalja, an infectious disease ...
The COVID-19 pandemic was confirmed to have reached the British Overseas Territory of the Turks and Caicos Islands on 23 March 2020. [111] On 12 May 2020, the last two cases recovered. There are currently no active cases, because one person left the country. [112] On 20 June 2020, a new case was discovered. [113]
By March 5, more than 2,750 cases of COVID-19 variants were detected in 47 states; Washington, D.C.; and Puerto Rico. This number consisted of 2,672 cases of the B.1.1.7 variant, 68 cases of the B.1.351 variant, and 13 cases of the P.1 variant. [35]
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The CDC estimates that, between February 2020 and September 2021, only 1 in 1.3 COVID-19 deaths were attributed to COVID-19. [2] The true COVID-19 death toll in the United States would therefore be higher than official reports, as modeled by a paper published in The Lancet Regional Health – Americas . [ 3 ]
At the beginning of the pandemic to early June 2020, Democratic-led states had higher case rates than Republican-led states, while in the second half of 2020, Republican-led states saw higher case and death rates than states led by Democrats. As of mid-2021, states with tougher policies generally had fewer COVID cases and deaths {needs update}.
A COVID-19 vaccine is intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 . Prior to the COVID-19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute ...