Some state governors, including New Jersey and Connecticut, announced on Twitter shortly before Mr Trump's press conference that they are expected to receive thousands of the tests in the coming weeks and millions by the end of the year.
About 6.5 million of these tests would be shipped this week, Admiral Giroir said, adding that they could be used in facilities such as doctor's offices or pharmacies.
"This is how Republicans and Democrats alike have said this is a game changer," said Mississippi Governor Tate Reeves, a Republican, at the White House press conference, adding that the kits would allow teachers in his state to do so to be tested "every day".
The tests, which the Food and Drug Administration gave the green light for emergencies in August, are only approved for use on people with symptoms of Covid-19 and must be performed by or in the presence of a trained medical professional. Such tests should be used within the first seven days of the onset of illness, according to Abbott.
When the company applied for approval, it didn't show its rapid tests were effective in people with no symptoms, which the F.DA. be an off-label use. However, comments such as Mr Reeves' suggested that they could be used in some places to examine or monitor people without symptoms.
"We don't know anything about the effectiveness of these tests in asymptomatic patients," said Dr. Krutika Kuppalli, an infectious disease doctor at Medical University in South Carolina. "We need to use tests whose performance has been validated."
The test is also designed to look for antigens or pieces of coronavirus proteins. Such tests are typically less accurate than laboratory tests, most of which are based on a time-consuming but very reliable technique called PCR.