Politics, Sports, Business, Entertainment and News you will get nowhere else.

Tuesday, 9 June 2020

Coronavirus: Asymptomatic Transmission Still Not Confirmed

How much coronavirus transmission comes from people with no symptoms is still a "big unknown", a World Health Organization scientist has clarified.
Dr Maria Van Kerkhove said on Monday it was "very rare" for asymptomatic people to pass the disease on.
But she has now stressed this observation was based on a relatively small set of studies.
Evidence suggests people with symptoms are most infectious, but the disease can be passed on before they develop.
Although a proportion of people test positive with no symptoms, it is not known how many of these people go on to infect others.
Dr Van Kerkhove said the evidence she had been discussing came from countries that had carried out "detailed contact tracing",
Looking at investigations of clusters of infections from various countries, she said that where an asymptomatic case had been followed up it was "very rare" to find secondary infections among their contacts.
But she it was still a "big open question" as to whether the same was true globally.
The uncertainties involved emphasise the importance of lockdown measures in "massively reduc[ing] the numbers of people infected," said Prof Liam Smeeth, an epidemiologist at the London School of Hygiene and Tropical Medicine.
He said he had been "surprised" by the WHO statement but had not seen the data it was based on.
Director of the WHO's health emergencies programme, Dr Michael Ryan, said he was "absolutely convinced" asymptomatic transmission was occurring, "the question is how much".


No comments:

Post a Comment

Disclaimer: Comments made by readers of this blog are strictly the views and opinions of the writers and not that of Nedu Echianu's Blog.

Credit is given to the original sources of culled stories, but in a situation where your story is wrongfully credited to someone else, please contact neduechianu@gmail.com for an immediate correction.

For eye witness reports, stories and features which you want published on this blog please contact me on +234-8037036168 or neduechianu@gmail.com.