Yes, we do need to bring back masks in medical settings
“The duty of care doesn’t land on patients. It’s the clinicians’ job to ensure patients don’t pick up an unintended infection. Patients have a right to safety in health care facilities.”
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“I see about 150-200 patients a week, many of them with hoarking coughs, right in my face. And I didn't catch a single thing from them. Masks in health care settings is just common sense.”
Relative efficacy of masks and respirators as source control for viral aerosol shedding from people infected with SARS-CoV-2: a controlled human exhaled breath aerosol experimental study
New study suggests healthcare workers should wear N95 masks when respiratory infections are high.
Wearing an N95 reduced viruses in exhaled breath by 98% vs ~70% for surgical masks.
🧵 refuting a spurious case against mask requirements in healthcare
Two new Canadian studies demonstrating the efficacy of masks.
Two new Canadian studies demonstrating the efficacy of masks.
These studies show that mandatory masking, esp during periods of high respiratory viruses in the community, can result in reductions in absenteeism, prevent infections and deaths & reduce economic burden. 🧵 1/9
Updated evidence suggests that masks may be associated with a reduction in risk for SARS-CoV-2 infection
"in a recent rapid review published in the Annals of Internal Medicine Journal, researchers presented live, updated evidence of the effectiveness of masks in preventing SARS-CoV-2".... infection in community and healthcare settings..."
Upgrading PPE for staff working on COVID-19 wards cut
"When Addenbrooke’s Hospital in Cambridge upgraded its face masks for staff working on COVID-19 wards to filtering face piece 3 (FFP3) respirators, it saw a dramatic fall – up to 100% – in hospital-acquired SARS-CoV-2 infections among these staff."
Efficacy of FFP3 respirators for prevention of SARS-CoV-2 infection in healthcare workers
Efficacy of FFP3 respirators for prevention of SARS-CoV-2 infection in healthcare workers
Risk of SARS-CoV-2 Acquisition in Health Care Workers According to Exposure and Mask Type
Risk of SARS-CoV-2 Acquisition in Health Care Workers According to Cumulative Patient Exposure and Preferred Mask Type
For Patient Safety, It Is Not Time to Take Off Masks in Health Care Settings | Annals of Internal Medicine
For Patient Safety, It Is Not Time to Take Off Masks in Health Care Settings
Update Alert 8: Masks for Prevention of Respiratory Virus Infections, Including SARS-CoV-2, in Health Care and Community Settings
Update Alert 8: Masks for Prevention of Respiratory Virus Infections, Including SARS-CoV-2, in Health Care and Community Settings
A cluster randomized clinical trial comparing fit-tested and non-fit-tested N95 respirators to medical masks to prevent respiratory virus infection in health care workers - PubMed
Study from 5/2011 showing N95s gave superior protection against respiratory viruses. A cluster randomized clinical trial comparing fit-tested and non-fit-tested N95 respirators to medical masks to prevent respiratory virus infection in health care workers
Influenza Virus Aerosols in Human Exhaled Breath: Particle Size, Culturability, and Effect of Surgical Masks
Study from 2013: Surgical masks worn by patients reduce aerosols shedding of influenza virus.
A Quantitative Assessment of the Efficacy of Surgical and N95 Masks to Filter Influenza Virus in Patients with Acute Influenza Infection
Study from 2009 showing both N95 and surgical masks reduced spread of influenza.: A Quantitative Assessment of the Efficacy of Surgical and N95 Masks to Filter Influenza Virus in Patients with Acute Influenza Infection
Facemasks for the prevention of infection in healthcare and community settings
Facemasks for the prevention of infection in healthcare and community settings
Association Between Universal Masking and SARS-CoV-2 Positivity Among Health Care Workers
Association Between Universal Masking in a Health Care System and SARS-CoV-2 Positivity Among Health Care Workers
Update Alert 8: Masks for Prevention of Respiratory Virus Infections, Including SARS-CoV-2, in Health Care and Community Settings | Annals of Internal Medicine
Update Alert 8: Masks for Prevention of Respiratory Virus Infections, Including SARS-CoV-2, in Health Care and Community Settings