Masks act as filters and actually capture the droplets and any other particles that are expelled while face shields are not able to do that.
Infectious coronavirus particles found in hospital air add to mounting evidence of airborne transmission
The significant concentrations of virus found in hospital aerosols highlight the need to follow precautions like improved ventilation, experts said.
Reports of people testing positive, weeks after they were believed to have recovered, have led some to think they might be reinfected.
N95 masks with valves 'detrimental' to curb the spread of COVID-19: Health Ministry letter to states
Masks like the N95 filters in clean air that the user inhales but the valves release exhaled, contaminated air back into the environment.
WHO chief says there is no return to normalcy in the future, too many countries are heading in the wrong direction with Coronavirus
The WHO said that government and individual responses should depend on local virus conditions - namely, whether there is community spread or no.
Coronavirus is airborne: Wear mask, stay away from crowded indoor spaces, and other things to keep in mind
Experts are saying infected people are releasing aerosols when they cough and sneeze and also when they breathe, talk or sing, with some exertion.
WHO's guidelines acknowledge evidence of COVID-19 airborne transmission, says more evidence is required to confirm it
Prior WHO guidance only acknowledged airborne transmission of the novel coronavirus during specific medical procedures.
An open letter from more than 200 scientists had accused the WHO of underestimating the possibility of airborne transmission. However, WHO officials have cautioned the evidence required further assessment.
WHO will review claims of airborne transmission of Coronavirus made by health experts from 32 countries
WHO guidance to health workers, dated 29 June, says SARS-CoV-2 is primarily transmitted through respiratory droplets and on surfaces.
Airborne transmission of the Coronavirus is a possibility claim 239 experts from 32 different countries in a letter to the WHO
They have outlined the evidence showing that smaller particles can infect people and are calling for the health agency to revise its recommendations.
Linsey Marr: Solving the case of airborne transmission of Coronavirus, public health issues with interdisciplinary studies
Linsey Marr’s lab found a large stockpile of expired respiratory masks and found that they were still effective but 3D printed masks were not.
New research suggests that coronavirus can stay in the air in crowded, polluted and poorly-ventilated areas
It has not been studied if these aerosols can actually cause infection - studies are underway to determine if aerosolized particles can turn virulent.
A study published in the New England Journal of Medicine (NEJM) used laser light-scattering technology to investigate evidence of speech-generated droplets.