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The US CDC's COVID-19 laboratory test kit. COVID-19 testing involves analyzing samples to assess the current or past presence of SARS-CoV-2, the virus that cases COVID-19 and is responsible for the COVID-19 pandemic. The two main types of tests detect either the presence of the virus or antibodies produced in response to infection.
As is common with infections, there is a delay, or incubation period, between the moment a person first becomes infected and the appearance of the first symptoms. The median delay for COVID-19 is four to five days [17] possibly being infectious on 1–4 of those days. [18]
Researchers analyzed 181 confirmed cases of the disease (both from within China and 24 other countries) and found that around half develop COVID-19 within 5 days of exposure and nearly all people ...
SARS-CoV-2 is the seventh known coronavirus to infect people, after 229E, NL63, OC43, HKU1, MERS-CoV, and the original SARS-CoV. [105] Like the SARS-related coronavirus implicated in the 2003 SARS outbreak, SARS‑CoV‑2 is a member of the subgenus Sarbecovirus (beta-CoV lineage B). [106] [107] Coronaviruses undergo frequent recombination. [108]
Here's how long it typically takes for symptoms to start.
A dataset of COVID-19 testing locations in the United States and Puerto Rico USAFacts [5] April 24, 2020 [6] Yes, by CDC [7] Daily County Yes No No Yes Yes No No A dataset of county-level coronavirus cases and deaths that is updated daily COVID Tracking Project [8] March 7, 2020 [9] No Daily State Yes No Yes Yes Yes Yes No No
During that same period, the test positivity rate was 12.5 per cent, and 1.9 per cent of emergency visits were diagnosed as Covid. Hospitalisation data for that week is not yet available.
No description. Template parameters [Edit template data] Parameter Description Type Status state state no description Unknown optional The above documentation is transcluded from Template:COVID-19 testing by country/doc. (edit | history) Editors can experiment in this template's sandbox (edit | diff) and testcases (create) pages. Add categories to the /doc subpage. Subpages of this template.
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