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Esta página también está en Español: Pruebas para el COVID-19 — lo que dice la evidencia
COVID-19 (coronavirus disease 2019) is caused by a virus called SARS-CoV-2. There are two kinds of test for it.
Viral tests: are you infected now?
A viral test tells you whether you have a current infection. Viral tests are either rapid or laboratory tests:
| Rapid tests | Laboratory tests | |
|---|---|---|
| Time | minutes | can take days |
| Usual kind | often antigen tests, which look for particular proteins from the virus | include PCR tests |
| Where | some are self-tests you can do at home | processed in a laboratory |
Antibody tests: were you infected before?
An antibody (serology) test might show whether you had an infection in the past.
Getting a test
- Buy a self-test online or in a shop — make sure it has been authorised by the U.S. Food and Drug Administration (FDA).
- Check your state or local health department's website for testing in your area.
- Contact your health care provider.
A negative result
Even if a viral test is negative — it did not detect the virus — keep taking steps to protect yourself and others.
Sources
- MedlinePlus, U.S. National Library of Medicine, "COVID-19 Testing," drawing on the Centers for Disease Control and Prevention. https://medlineplus.gov/covid19testing.html
- Rewritten in hubnx's own words.
Licencia: CC0 1.0 (dominio público) · Adaptado de medlineplus.gov
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