Wednesday, March 25, 2020

Covid-19 or SARS-CoV-2: Airborne so 2 metres distance meaningless!

As Covid-19 virus is now found to be airborne, 2 metres distance will not help. A jogger in front of you may be a symptom free carrier and pass it to the jogger behind.  

Surgeons wear masks mainly to protect the patient being operated on. Perhaps places where people wear masks do not have such a high number of Coronavirus cases: Hong Kong and Taiwan.

Hong Kong Street.

While wearing a mask has become the norm in many places in Asia, the mask frenzy has hit nowhere as hard as Hong Kong. At the height of COVID-19 panic, residents lined up overnight outside drugstores to buy face masks. South Korea, Singapore and Japan have distributed face masks to residents. Taiwan and Thailand have banned the export of masks to meet soaring local demand.

In Hong Kong and Singapore, they don’t shut the place down or put everyone under home quarantine. They do their best to trace every contact and then quarantine only those who had close contact with the infected person. In Hong Kong, “close contact” means fifteen minutes at a distance of less than six feet and without the use of a surgical mask; in Singapore, thirty minutes. If the exposure is shorter than the prescribed limit but within six feet for more than two minutes, workers can stay on the job if they wear a surgical mask and have twice-daily temperature checks. People who have had brief, incidental contact are just asked to monitor themselves for symptoms.  New Yorker:

May23, 2003

“Faced with the World Health Organization's costly declaration on April 23, that Toronto was too dangerous to visit, politicians, health officials and even the news media quickly banded together against a common enemy — and it was not the virus but WHO, the United Nations agency, that had effectively put Canada's largest city under quarantine. ‘That week, that advisory definitely changed our psychology and the way we looked at this outbreak, ’Dr. Low said. ‘I remember . . . we were putting such a positive spin on things, including myself — everybody wanted to be clean of this.’”

"Now Toronto is holding its collective breath through a crucial weekend once again, as health officials cling to hopes of containment even as the numbers of cases and people in quarantine climb. The WHO lifted its travel advisory on April 30. Two weeks later, after the agency removed Toronto from its list of SARS-affected areas, Ontario lifted the provincial emergency status. Behind the scenes, the province disbanded members of its epidemiology team and scaled back its emergency-operations centre to a routine monitoring function. With no known new cases after 20 days, the city had laid down its gloves. On May 16, health staff in area hospitals were instructed that they no longer needed to wear full protective gear. May 16 is emblazoned with regret in Dr. Low's mind: "As soon as the masks and the gloves came off, you can see this dramatic spike in the cases.”

“……There was a new cluster, they told him, centering on patients who had spent time at St. John's Rehabilitation Centre in the city's north end before being transferred to four other Toronto area hospitals. Contact tracing had turned up no epidemiological link to the first outbreak. But a lab test confirmed that one of the four known patients carried the SARS coronavirus deep in his bronchial tract. It was back.”

You really cannot spin the public’s health, or can you? However there was some other form of spinning.

“Dr. Low's head spun with disbelief. ‘You're hearing it all and you're trying to minimize it. You're thinking, No this can't be right, this can't be.'

I know that Influenza A(H1N1) is not SARS, but why should we not learn from it.

The evidence of masks is hereCDC on SARS.

Bus in Hong Kong AFP
In the meantime we are donning masks whatever anyone else may say.

SARS ACCOUNTS: Dr Yannie Soo, Tom Buckley.
Other Posts:

SARS, Freedom & Knowledge

Learning from History: Swine Flu & Antibiotics

Learning From History: 1918 Flu Pandemic, Hong Kong SARS, Swine Flu & Influenza A(H1N1)
EBM: Masks, Cathay Pacific Airline, SARS and Influenza A(H1N1)
Swine Flu: WHO Level 5 & The 1976 Vaccine Disaster.
Hong Kong: SARS and Swine Flu
SARS and Quorum Sensing
Hospital Infection: Quorum Sensing


hyperCRYPTICal said...

I wonder if you have read this:
Stat safe
Anna. xxx

hyperCRYPTICal said...

Should be stay safe!