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Characteristics of Balamuthia mandrillaris seropositive and seronegative landscapers in Pima County, Arizona, USA, 2010
| Seropositive (N=3) | Seronegative (N=80) | p-value | |
|---|---|---|---|
| n (%) | n (%) | ||
| Male | 3 (100%) | 79 (99%) | >0.99 |
| Age < 40 years | 3 (100%) | 27 (34%) | 0.06 |
| Hispanic ethnicity | 2 (67%) | 45 (56%) | >0.99 |
| Most or all installation vs. maintenance landscaping | 2 (67%) | 13 (16%) | 0.08 |
