Discussion This example situation demonstrates that conversations at short distances with nonwoven masks either off or out of position or crowding in a hypoventilated state may be significant risk factors for infection with SARS-CoV-2.
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SARS-CoV-2 Delta AY.1 Variant Cluster in an Accommodation Facility for COVID-19: Cluster Report.
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Moreover, the delta variant (delta) of the B.1.617.2 strain has been sporadically detected since May and an increasing trend has been reported [ 4 ].