THOUSANDS of Brits may have been told they’re coronavirus free after the swabs they used to test themselves don’t go deep enough into the nose, experts fear. Anyone who has symptoms of …
THOUSANDS of Brits may have been told they're coronavirus free after the swabs they used to test themselves don't go deep enough into the nose, experts fear.
Experts are warning that self-tests are less accurate because they use shorter swabs and do not need to be inserted as deeply in the nostril. The professional-used swabs are much longer and are designed to take samples from the "floor" of the nose.Infectious disease specialists say people doing the swabs themselves can make false negatives more likely.The current guidelines in the UK don't tell people to stay home after they receive a negative test, even if they have symptoms.: "A single negative test result doesn't exclude the disease.
Dr Andrew Preston, an infectious lung disease expert at the University of Bath, told MailOnline that shallower swabs in the nose and mouth were not as good.Dr Preston added: "We consider it an unsuccessful swab unless the eyes water. We see real, real issues with the sensitivity of the swab if swabbing in nose.Professor Lawrence Young, a virologist at Warwick University, added that deciding someone's health status based on one test means it absolutely must be accurate.
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