The government's scientific advisers, to meet later to discuss whether The Public should be encouraged to wear masks in an attempt to combat the coronavirus.
But Chris Hopson, chief executive of NHS providers, warned that it should "clear evidence" to justify their use.
He Said the was position of care for NHS staff at the heart of the huge global demand "decisive".'Huge global demand'
The (THE) said, there is no evidence to support the use of face masks by The General population.
It is said that people that are not in health and nursing facilities should only wear masks when they are sick or care for those who are sick.
London mayor Sadiq Khan has called for the.
elsewhere, the French authorities, the masks of the people in lockdown measures next month will be easier, and the Americans are invited, wear, cloth, face-coverings in public space, where social distance is impossible.
set The government Scientific Advisory Group for Emergencies (Sage), his recommendations to the Minister This Week .
But Mr Hopson, who represents healthcare trusts in England, said that the impact on the NHS must finally be evaluated.
"fluid-resistant masks for health and care staff, the key to safety, and to prevent the spread of the Corona Virus," He Said .
"the security of supply of the masks, if there is high global demand, is crucial. This must be one of the most important considerations for the government.
"There is clear evidence that the wearing of masks, along with other measures, provide significant enough benefits to us of the lockdown to potentially endanger the NHS, mask deliver. "
On Monday, a further 449 coronavirus have been recorded deaths in UK hospitals - the total number 16,509.Americans , it was recommended, with a clean cloth or tissue to their faces
cover THE guide, issued warned earlier this month that the use of masks by The Public , they create a "false sense of security" and leads to people without other protective measures such as hand hygiene, and physical distancing.
While the recognition of The Virus can be passed on by people who are Not Yet symptomatic, it is said: "the Current evidence suggests that most of the diseases confirmed transmitted by a symptomatic, laboratory-cases.
"There is currently no evidence that wearing a mask (whether medical or other types) from healthy persons in the larger community setting, including the universal community of the masking you can prevent infections with respiratory viruses. "
masks are also a source of infection if not inserted correctly, the added.
called by a group of physicians, on people your own face to help the mask to stop the spread of the coronavirus.
Masks4All, a campaign group started in the Czech Republic attracted has hit the support of More Than 100 UK medics, homemade masks could slow down the spread of Covid-19
Dr. Helen Davison was The Group "to advocate the use of cloth masks as a precautionary principle" and what it was inspired by measures in other countries.
And Prof Babak Javid, a consultant in infectious diseases at Cambridge University hospitals, said: "population mask an important part of the answer to Covid should wear".
He added: "as soon As Covid cases, can be largely suppressed, we can stop wearing masks, their incremental profit will be low. But now, really use of masks, most of us masks to wear. "
to solve Now
Amid growing criticism of the government over the continuing lack of protective equipment for NHS staff, Registrar Rishi Sunak said on Monday the Downing Street coronavirus briefing the government was working "around The Clock " to The Problem .
He recalled that the government the message that the UK needed five tests before the easing of closure measures, including increasing testing in the community, and it is certain there is no danger of a second peak.
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