Time to double or upgrade masks as coronavirus variants emerge, experts say. Nirappil, F. Washington Post. 00000
Time to double or upgrade masks as coronavirus variants emerge, experts say [link]Paper  abstract   bibtex   
The change can be as simple as slapping a second mask over the one you already wear or, better, donning a fabric mask on top of a surgical mask.
@article{nirappil_time_nodate,
	title = {Time to double or upgrade masks as coronavirus variants emerge, experts say},
	issn = {0190-8286},
	url = {https://www.washingtonpost.com/health/2021/01/27/double-mask-variants-guidance/},
	abstract = {The change can be as simple as slapping a second mask over the one you already wear or, better, donning a fabric mask on top of a surgical mask.},
	language = {en-US},
	urldate = {2021-02-27},
	journal = {Washington Post},
	author = {Nirappil, Fenit},
	note = {00000},
}
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