Many specialists stated the W.H.O. ought to embrace what some known as a “precautionary precept” and others known as “wants and values” — the concept that even with out definitive proof, the company ought to assume the worst of the virus, apply widespread sense and advocate the most effective safety attainable.
“There isn’t a incontrovertible proof that SARS-CoV-2 travels or is transmitted considerably by aerosols, however there’s completely no proof that it’s not,” stated Dr. Trish Greenhalgh, a major care physician on the College of Oxford in Britain.
“So in the intervening time we’ve to decide within the face of uncertainty, and my goodness, it’s going to be a disastrous determination if we get it fallacious,” she stated. “So why not simply masks up for a number of weeks, simply in case?”
In spite of everything, the W.H.O. appears keen to simply accept with out a lot proof the concept that the virus could also be transmitted from surfaces, she and different researchers famous, at the same time as different well being businesses have stepped again emphasizing this route.
“I agree that fomite transmission will not be immediately demonstrated for this virus,” Dr. Allegranzi, the W.H.O.’s technical lead on an infection management, stated, referring to things which may be infectious. “However it’s well-known that different coronaviruses and respiratory viruses are transmitted, and demonstrated to be transmitted, by contact with fomite.”
The company additionally should think about the wants of all its member nations, together with these with restricted sources, and ensure its suggestions are tempered by “availability, feasibility, compliance, useful resource implications,” she stated.
Aerosols could play some restricted position in spreading the virus, stated Dr. Paul Hunter, a member of the an infection prevention committee and professor of drugs on the College of East Anglia in Britain.