TABLE 1—
COVID-19 Outbreaks and Outbreak-Associated Cases, by Industry Sector: California, January 2020–August 2021
| Industry Sectora | No. of Reported Outbreaks (%) | No. of Outbreak-Associated Cases (%) | Mean No. of Outbreak-Associated Cases per Outbreak | Outbreak Incidence (per 1000 Establishments) |
| Health care and social assistance | 9 513 (47.8) | 164 659 (54.8) | 17.3 | 14.8 |
| Retail trade | 1 706 (8.6) | 16 201 (5.4) | 9.5 | 15.9 |
| Manufacturing | 1 576 (7.9) | 22 570 (7.5) | 14.3 | 35.7 |
| Accommodation and food services | 1 461 (7.3) | 9 423 (3.1) | 6.4 | 16.4 |
| Educational services | 1 224 (6.2) | 10 333 (3.4) | 8.4 | 35.1 |
| Public administration | 954 (4.8) | 41 218 (13.7) | 43.2 | 78.1 |
| Transportation and warehousing | 689 (3.5) | 13 356 (4.4) | 19.4 | 21.7 |
| Construction | 499 (2.5) | 3 874 (1.3) | 7.8 | 5.7 |
| Other services, except public administration | 447 (2.2) | 3 451 (1.1) | 7.7 | 4.5 |
| Wholesale trade | 305 (1.5) | 3 463 (1.2) | 11.4 | 4.7 |
| Professional, scientific, and technical services | 263 (1.3) | 1 598 (0.5) | 6.1 | 1.6 |
| Real estate and rental and leasing | 256 (1.3) | 1 751 (0.6) | 6.8 | 4.2 |
| Administrative and support and waste management services | 218 (1.1) | 1 553 (0.5) | 7.1 | 3.8 |
| Agriculture, forestry, fishing, and hunting | 215 (1.1) | 2 679 (0.9) | 12.5 | 13.3 |
| Finance and insurance | 187 (0.9) | 1 109 (0.4) | 5.9 | 3.5 |
| Arts, entertainment, and recreation | 176 (0.9) | 1 744 (0.6) | 9.9 | 5.8 |
| Utilities | 85 (0.4) | 450 (0.1) | 5.3 | 52.4 |
| Information | 69 (0.3) | 470 (0.2) | 6.8 | 2.3 |
| Management of companies and enterprises | 31 (0.2) | 313 (0.1) | 10.1 | 6.5 |
| Mining, quarrying, and oil and gas extraction | 15 (0.1) | 88 (0.0) | 5.9 | 19.1 |
| Military | 4 (0.0) | 76 (0.0) | 19.0 | 25.3 |
| Total | 19 893 | 300 379 | 15.1 | 12.2 |
a
Industry sectors are listed in descending order of number of reported outbreaks.