Volume 21, Number 11—November 2015
Research
Coccidioidomycosis among Workers Constructing Solar Power Farms, California, USA, 2011–2014
Table 3
Potential worksite Coccidioides exposures and use of control measures during 4 weeks before symptom onset by workers at 2 solar power–generating facilities, San Luis Obispo County, California, USA, October 2011–April 2014*
Exposure |
No. (%) | ||
---|---|---|---|
Frequently |
Infrequently |
Don’t know |
|
Work duties involved, n = 43† | |||
Manual digging | 12 (28) | 31 (72) | 0 |
Working in a ditch or trench | 19 (44) | 24 (56) | 0 |
Operating heavy machinery‡ | 8 (19) | 35 (81) | 0 |
Any of the above |
25 (58) |
18 (42) |
0 |
High dust levels, n = 42† |
39 (93) |
0 |
3 (7) |
Used a respirator, n = 41§¶ |
10 (24) |
31 (76) |
0 |
At the end of work, did you† | |||
Drive home in work clothes, n = 41 | 31 (76) | 9 (22) | 1 (2) |
Wash up before leaving work, n = 39 | 19 (49) | 20 (51) | 0 |
Shower immediately after getting home, n = 41 | 34 (83) | 5 (12) | 2 (5) |
*Of the 44 patients, 43 were interviewed and 41 completed the interview. Some patients did not answer certain questions.
†Frequently includes the responses of “every day” and “once a week”; infrequently includes the responses of “rarely” and “never.”
‡One of 8 worked with heavy equipment with an enclosed cab and high-efficiency particulate air (HEPA)–filtered air-conditioning every day.
§Frequently includes the responses of “always” and “often”; infrequently includes the responses of “sometimes,” “rarely,” and “never.”
¶Does not include 1 employee who reported operating heavy equipment with an enclosed cab and HEPA-filtered air-conditioning every day.
1Current affiliation: California Department of Public Health, Richmond, California, USA.