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COVID-19 antigen test could give quick results, but is not foolproof
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The cheap, simple-to-use test could miss as many as 4 in 10 cases of SARS-CoV-2 infection. However, its developers argue that as part of triage for suspected cases, the test could help conserve scarce resources for more sensitive laboratory testing.
At the time of writing, SARS-CoV-2 — the coronavirus that causes COVID-19 — has infected 4.2 million people worldwide and caused more than 291,000 deaths.
One of the main weapons being used to curb the spread of the virus is testing for infection. But the capacity of healthcare systems to carry out the most sensitive, reliable laboratory test for the virus is limited, and there have been worldwide problems with the supply of reagents.
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COVID-19
United States
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Cases: 46 252 513
Deaths: 750 423
Recovered: 0
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India
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Cases: 34 321 025
Deaths: 459 652
Recovered: 0
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Brazil
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Cases: 21 835 785
Deaths: 608 235
Recovered: 0
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United Kingdom
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Cases: 9 215 683
Deaths: 141 607
Recovered: 0
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Russia
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Cases: 8 494 589
Deaths: 237 619
Recovered: 0
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