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Wagner also refers to star American virologist Anthony Fauci, who broke the spearhead of rapid tests by saying that the perfect, that is, the PCR test, should not be the enemy of the good, that is, the rapid test. Because speed is even more important than sensitivity in order to quickly isolate infectious people, says Wagner, director of the clinical institute for laboratory medicine at the Vienna General Hospital. But he is very much in favor of the PCR being retested.
There is a good reason for it. Because, as Wagner emphasizes, with the number of cases currently low, the go-ahead could be given in perhaps as many as half of the cases after an originally positive test. As for the so-called rapid false negative tests, he points out that in most cases these do not work in people who have already had the infection or are no longer contagious. Individual infectious people will be overlooked, the vice chancellor acknowledges, but assumes that 90 percent of cases will be detected with rapid tests.
