There is no way of knowing how many people are unwittingly infected with the Covid-19 virus, the National Research Council of Thailand says.
Dr Thiravat Hemachudha, head of the Centre for Emerging Infectious Diseases Health Science Centre, cited the council’s conclusion on Friday (March 27) in pointing out that these unaware victims form an entirely separate group from the documented cases.
They might not be showing any symptoms or could do so within 12 hours of infection, he said.
A report in the magazine Science suggests there could have been 6.2 times more unaware victims than confirmed victims prior to the government’s clampdown on dining and entertainment venues.
That measure and steadily improving healthcare management will have reduced the figure to 0.5, it’s estimated.
Source : Nation Multimedia