Are masks effective in the protection against COVID-19? AnnalsofIM masks covid COVID19 SARSCoV2 pandemic publichealth health public epidemic protection transmission
By Tarun Sai LomteMay 17 2023Reviewed by Lily Ramsey, LLM A recent editorial published in the Annals of Internal Medicine Journal discussed the efficacy of masks in preventing coronavirus disease 2019 .
As such, many studies analyzed the physical properties of masks; but they were small, often involving robotic wearers. Moreover, they only studied the spread of particles instead of infection. Evidence on masking effectiveness Although trials offer high-quality evidence, the evolution of the pandemic, accompanied by the changes in immunity, vaccine availability, and SARS-CoV-2 variants, presents challenges to definitively answer questions about the efficacy of masks in averting infection.
There was a lack of evidence on the potential harms related to masking inventions in both reviews. Although both are systematic assessments of the available evidence, they reported substantial uncertainty and evidence gaps. In addition, potential harms and benefits associated with masking should be explicitly considered. This is because some may justify masking based on any evidence of benefits, while others believe that discomfort, communication impedance, and inconvenience due to masks outweigh the small benefits. Real-world assessment of the effectiveness of masks is essential.
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