Coronavirus Testing Required Before U.S. Entry
The Centers for Disease Control and Prevention (CDC) confirmed on January 28, 2021, all air passengers two years of age and over entering the USA (including U.S. citizens and Legal Permanent Residents) must present a negative COVID-19 test, taken within three calendar days of departure, or proof of recovery from the SARS coronavirus within the last 90 days.
Airlines must confirm the negative test result or proof of recent recovery for all passengers before boarding or deny boarding of passengers who do not provide a negative test or recovery documentation.
The CDC says 'humanitarian exemptions to this order will be granted on an extremely limited basis and will only be considered when the country of departure lacks adequate SARS-CoV-2 testing capacity and cannot meet the requirements to provide a negative viral COVID-19 test before departure.
However, there are no waivers available for individuals who test positive for COVID-19.