In Australia, more than 353,000 people have so far been tested for COVID-19 and more than 6,300 cases have been confirmed. But Swinburne University's Professor Bruce Thompson said sometimes results can be incorrect and offer the wrong impression of safety. "In some cases that we are seeing [globally], it's up to 20 per cent that's actually getting a false-negative result," the university's dean of health science told SBS News.
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