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. 2020 Dec 4;10:21256. doi: 10.1038/s41598-020-77628-4

Table 2.

Qualitative profile of exposure rates, for the community destinations.

Age group Home Doctor Store Church Campus School Park Restaurant
Children β0 β 2β 2β 2β 2β 2β 3β
Young β0 β 1.5β 1.5β 1.5β 1.5β β 3β
Adults β0 β 1.5β 1.5β 1.5β 1.5β β 3β
Elder β0 β β β β β β 2β

The baseline value of β was obtained as the product between the inverse of the time length θ during which the individual spreads the virus, and the reproduction value R0. The reproduction value for this outbreak was estimated as R0=340. This led to β=0.1, which was lowered to β0=0.08 in case of the home exposure rate, and adapted multiplicatively for each destination and age to reflect the corresponding patterns. For example: the likelihood of exposure for an adult is 3 times higher at a bar that at the doctor. In terms of age variability: children exhibit behaviors that make them more prone to exposure, the elderly are more careful.