Volume 27, Number 4—April 2021
Synopsis
Characteristics of SARS-CoV-2 Transmission among Meat Processing Workers in Nebraska, USA, and Effectiveness of Risk Mitigation Measures
Table 3
Comparisons of the incidence of severe acute respiratory syndrome coronavirus 2 infection among meat processing workers before mask intervention, between mask and physical barrier intervention, and after physical barrier intervention in meatpacking facilities, Nebraska, April–July 2020
Facility | Incidence /1,000 persons /d |
|||
---|---|---|---|---|
<10 d after mask intervention | Between day 10 after mask and day 10 after physical barrier intervention | >10 d after physical intervention | p value for difference* | |
A | 3.46 | 3.23 | 0.26 | <0.001 |
B | 11.13 | 42.2 | 0.58 | <0.001 |
C |
2.63 |
0.26 |
0.32 |
<0.001 |
*p value difference represents difference in incidence before initiation of mask intervention and after physical barrier intervention. |