Coronavirus asymptomatic spread is very rare says WHO.
The World Health Organizations (WHO), technical lead for Novel Coronavirus, Dr Maria Van Kerkhove, said:
“It still appears to be rare that an asymptomatic individual actually transmits onward.”
Dr Maria Van Kerkhove added:
“We have a number of reports from countries who are doing very detailed contact tracing. They are following asymptomatic cases, they are following contacts, and they are not finding secondary transmission onward. It is very rare. Much of that is not published in the literature.”
Dr Maria Van Kerkhove, cited aJune 5 WHO report, which stated that based on evidence from contact tracing:
“Asymptomatically infected individuals are much less likely to transmit the virus than those who develop symptoms.”
The response to this declaration of the WHO, by Dr. Ashish Jha, the Director of Harvard’s Global Health Institute, was:
“That fundamentally changes our understanding of how this virus is spread and what we should do as a response. This is not a minor, technical clarification. The implications of what is being said are very, very substantial, and it requires a lot more context and explanation than WHO is providing right now.”
Dr. Ashish Jha added:
“Asymptomatic spread is what makes controlling this disease so incredibly hard.”
If that’s not the case, he added, “then that changes the ballgame. It’s too big a finding to be shared in passing.”
Dr Hanalise V Huff, the other author involved in the study said:
“We are not commenting specifically on the WHO’s findings because we haven’t seen them. But given the evidence, it’s pretty convincing that asymptomatic and pre-symptomatic spread exists.”
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