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SINGAPORE – Several of the locally infected patients with no known links had seen a doctor two or three times before they were sent to hospital.
This is because the illness generally starts mild with non-specific symptoms such as cough, sore throat, slight fever and feeling tired, said Professor Leo Yee Sin, executive director of the National Centre for Infectious Diseases (NCID).
These are symptoms tens of thousands of people suffer from every day in Singapore alone, she added.
So it is difficult to identify those infected by the novel coronavirus if they have no links to China or to other patients.
She said they may be mildly sick for more than a week before the virus affects their lungs.
That is why those who feel unwell are advised to stay home, or if they need to go out, to wear a mask so they do not spread disease to others.
Professor Tan Chorh Chuan, chief health scientist at the Ministry of Health (MOH), said: “In today’s environment, be prudent. If you are feeling febrile, it’s better to stay at home.”
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