COVID-19 tests may yield false negative if used too early on infected people2 min read . Updated: 11 Jun 2020, 11:45 AM IST
- A negative test, whether or not a person has symptoms, doesn't guarantee that they aren't infected by the virus, according to a report
- According to researchers, test performed best 8 days after infection, which on average is three days after symptom onset
WASHINGTON : Testing people for COVID-19 too early in the course of infection may result in a false negative diagnosis, even though they may eventually test positive for the virus, according to a study which says it is best performed three days after the symptoms appear.
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