Coronavirus outbreak

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Ming the Merciless

There is no mercy
Location
Inside my skull
Yes different here. If you have the symptoms but haven’t been to an affected area (outside UK) nor knowingly interacted with someone who has, then the NHS isn’t interested in testing you for Covid19
 

RecordAceFromNew

Swinging Member
Location
West London
Virus is a nano particle, doubt those masks will stop it.

There are masks and masks. With surgical masks no matter what you do they leave sizeable gaps - but still not useless, as Nickyboy indicated, and then there are "respirators" which usually have a valve in front, and can make you look a little like Anthony Hopkins with his mask in Silence of the Lamb.

In UK/Europe respirators come in 3 grades, FFP1, FFP2 and FFP3. The latter two are equivalent to US' N95, all are pretty effective against nano particles if the fit is good (worn properly). This research shows the protection provided by surgical mask and respirator samples when tested.

I suspect some don't believe the improvement reported in China - similar measures in Hongkong have not only been effective controlling Coronavirus, they have cut normal flu cases to 1% by the end of February, shortening the flu season there by up to 2 months.*


* if you get blocked by the paywall, just copy link and open it in an incognito tab of your browser
 

Joey Shabadoo

My pronouns are "He", "Him" and "buggerlugs"
I’m taking no chances

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AuroraSaab

Veteran
Re: the masks thing. As I understand it, they do help prevent an infected person spreading the virus laden droplets a bit, but are less effective in preventing inhalation of said droplets because the moisture in your breath degrades the fibres of the fabric fairly quickly. As we are talking about microscopic sized things, they will get through the fabric after a short period.


I have a very tight rubber mask I use for paint spraying on my car restoration. It is supposed to able to be safely used with 2k paints (which normally require a mask with an external air supply), but only for up to about 2 hours. I presume this is because the same principle applies - the filter degrades quickly. (I don't use it with 2k paint; I just don't like the smell of aerosols).
 

Ming the Merciless

There is no mercy
Location
Inside my skull
There are masks and masks. With surgical masks no matter what you do they leave sizeable gaps - but still not useless, as Nickyboy indicated, and then there are "respirators" which usually have a valve in front, and can make you look a little like Anthony Hopkins with his mask in Silence of the Lamb.

In UK/Europe respirators come in 3 grades, FFP1, FFP2 and FFP3. The latter two are equivalent to US' N95, all are pretty effective against nano particles if the fit is good (worn properly). This research shows the protection provided by surgical mask and respirator samples when tested.

I suspect some don't believe the improvement reported in China - similar measures in Hongkong have not only been effective controlling Coronavirus, they have cut normal flu cases to 1% by the end of February, shortening the flu season there by up to 2 months.*


* if you get blocked by the paywall, just copy link and open it in an incognito tab of your browser

I don’t think anyone in Hong Kong or China is claiming masks is the cause of the improvement but is a result of all the measures implemented.
 
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