https://www.news-medical.net/news/20220912/Research-supports-use-of-FFP23-masks-for-HCWs-caring-for-COVID-19-patients.aspx
In a recent study posted to the medRxiv* preprint server, researchers in the United Kingdom assessed the aerobiology of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in United Kingdom (UK) hospitals and the impact of aerosol-generating procedur…
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