The Abbott coronavirus test hailed by President Trump and used by the White House failed to detect infected samples in a large number of cases that were caught by a rival firm, a preliminary study says.
The speedy Abbott test, which is supposed to determine in five to 13 minutes whether a person has the virus, missed a third of the positive samples found by the diagnostic company Cepheid when both tests used nasopharyngeal swabs, said the study done by a group from New York University. It missed more than 48 percent when both firms’ tests used dry nasal swabs. The former penetrates deeply into the nasal passages, while the latter is less invasive.
The study, while preliminary and not yet peer-reviewed, raised questions about a test that has been praised by Trump, who displayed it at a Rose Garden news conference on April 2 and said it created “a whole new ballgame.” As the pandemic was creating a sense of urgency about testing, the Abbott test triggered a scramble among governors and other state officials because bottlenecks were causing waits of as long as a week or more for test results. Continue reading.