"That makes the policy of case finding and containment very challenging," Koopmans says.Koopmans says that the revelation came for her while trying to conduct disease surveillance in the Netherlands. Like many countries, the Netherlands initially screened patients with a history of foreign travel. But when a handful of untraceable cases appeared within the country, her team shifted strategies and began to test health care workers in the hospitals where the cases were reported.
Alfredo Garzino-Demo, a virologist based at the University of Maryland and affiliated with the University of Padua in Italy, says this characteristic, while not uncommon among viruses, makes this disease extremely hard to contain."Many diseases have a window period in which you don't have symptoms but you are still able to transmit," he says.
Broad surveillance of the general population will be key to controlling subsequent waves of the disease, she warns, especially as draconian social distancing measures are loosened.not-yet-peer-reviewed research
This article makes it sound like you can only get COVID19 if someone directly coughs or sneezes on you. Yet, we know you can get it from sharing airspace with an asymptomatic person, including children. That's literally the point of social distancing.
Even if they are not experiencing ANY symptoms. We all need to practice physical distancing as though we, and everyone else, has CoVid-19. Self quarantine if you have symptoms (even without a test) for 14 days to recover and then an additional 14 days to avoid shedding the virus.
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