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SINGAPORE – Two Covid-19 patients in Singapore who tested positive for dengue were found later to not have the mosquito-borne disease.
One was a 57-year-old woman, who was said to be the first patient in Singapore to have contracted both the coronavirus and dengue. The other is a man, also aged 57.
These details were disclosed in a paper published in The Lancet medical journal last week (March 4), authored by a group of doctors from the National University Health System, Ng Teng Fong General Hospital, polyclinics and the Environmental Health Institute.
The doctors said the two cases highlighted the importance of recognising false-positive dengue results in patients with Covid-19. Those with dengue typically have a fever and a rash, but unlike Covid-19 patients, they do not have such respiratory symptoms as a runny nose, cough or sore throat.
“Failing to consider Covid-19 because of a positive dengue rapid test result has serious implications not only for the patient but also for public health,” said the authors.
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