Experts say it's possible for some people to be infected with Covid-19 and show no symptomsThere are growing fears that these infected carriers are slipping under the radar and could be behind the staggering advance of the disease.Experiencing any of these symptoms should be the trigger point for going into self-isolation for a week.But if you don't show any symptoms - known as being 'asymptomatic' - then the risk of infecting others increases.
Jeremy Farrar, a London-based infectious disease specialist, told Nature: “We need to make policy decisions and clinical decisions now.The dramatic outbreak in the US state of Massachusetts is a case in point. One pre-print study indicates between 48 per cent and 66 per cent of 91 cases in Singapore must have contracted the virus from a carrier not showing symptoms.Another points to people being infectious on average between 2.55 and 2.89 days before the onset of symptoms.
“You really need to just focus on the individuals that are symptomatic. And you do the classic blocking and tackling of public health: identify cases, get them diagnosed, get them treated, get them isolated, and then do the contact tracing,” US Secretary of Health and Human Services Alex Azar told US media earlier this month.
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