Anonymous ID: 8f37b7 May 15, 2020, 11:47 a.m. No.9188076   🗄️.is 🔗kun   >>8120

>>9187607

Educate yourself.

Cloth masks are ineffective as source control and PPE, surgical masks have some role to play in preventing emissions from infected patients, and respirators are the best choice for protecting healthcare and other frontline workers, but not recommended for source control. These recommendations apply to pandemic and non-pandemic situations.

 

https://www.cidrap.umn.edu/news-perspective/2020/04/commentary-masks-all-covid-19-not-based-sound-data

 

A cluster randomised trial of cloth masks compared with medical masks in healthcare workers

 

We have provided the first clinical efficacy data of cloth masks, which suggest HCWs should not use cloth masks as protection against respiratory infection. Cloth masks resulted in significantly higher rates of infection than medical masks, and also performed worse than the control arm. The controls were HCWs who observed standard practice, which involved mask use in the majority, albeit with lower compliance than in the intervention arms. The control HCWs also used medical masks more often than cloth masks. When we analysed all mask-wearers including controls, the higher risk of cloth masks was seen for laboratory-confirmed respiratory viral infection.

 

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4420971/

 

This experiment did not include N95 masks and does not reflect the actual transmission of infection from patients with COVID-19 wearing different types of masks. We do not know whether masks shorten the travel distance of droplets during coughing. Further study is needed to recommend whether face masks decrease transmission of virus from asymptomatic individuals or those with suspected COVID-19 who are not coughing.

 

In conclusion, both surgical and cotton masks seem to be ineffective in preventing the dissemination of SARS–CoV-2 from the coughs of patients with COVID-19 to the environment and external mask surface.

 

https://annals.org/aim/fullarticle/2764367/effectiveness-surgical-cotton-masks-blocking-sars-cov-2-controlled-comparison

 

Jenny Harries, deputy chief medical officer, said the masks could “actually trap the virus” and cause the person wearing it to breathe it in.

 

https://www.independent.co.uk/news/health/coronavirus-news-face-masks-increase-risk-infection-doctor-jenny-harries-a9396811.html

 

Surgeon General Jerome Adams Tuesday doubled down on his advice against healthy people wearing face masks to protect themselves from coronavirus, saying that wearing one improperly can "actually increase your risk" of getting the disease. 

 

https://www.newsmax.com/us/surgeon-general-adams-masks/2020/03/31/id/960679/

 

Why Face Masks Don’t Work: A Revealing Review

 

October 18, 2016

by John Hardie, BDS, MSc, PhD, FRCDC

 

https://www.oralhealthgroup.com/features/face-masks-dont-work-revealing-review/

 

Controversy: Respiratory Protection for Healthcare Workers

 

Kathleen H. Harriman, PhD, MPH, RN; Lisa M. Brosseau, ScD

 

April 28, 2011

 

https://www.medscape.com/viewarticle/741245_print