We begin with a simple model for the COVID-19 epidemic and add face mask usages and testing and quarantine of infectives. We estimate the effect on the reproduction number and discuss the question of whether the epidemic can be controlled by increased use of face masks.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9620923 | PMC |
| http://dx.doi.org/10.3390/epidemiologia2010007 | DOI Listing |
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