https://www.iatatravelcentre.com/world.php можно пройти по ссылке ( взяла на сайте Аэрофлота), выбрать США на карте, справа откроется информация Effective 26 January 2021:
Passengers must have a medical certificate with a negative Coronavirus (COVID-19) viral antigen or NAAT test result. The test must have been taken at most 3 days before departure from the first embarkation point.
Passengers details (e.g., name and date of birth) in the certificate must match those stated in the passport or other travel document; and
- the test result must specify "negative" or "not detected", if marked "invalid" it is not accepted.
This does not apply to:
- passengers younger than 2 years;
- US military personnel;
- passengers with a medical certificate with a positive Coronavirus (COVID-19) test result issued at most 90 days before departure from the first embarkation point; and a letter issued by a health authority stating that the passenger has been cleared for travel. The test result must specify "positive" or "detected", if marked "invalid" it is not accepted.