Volume 11, Number 9—September 2005
Dispatch
Gram-positive Rod Surveillance for Early Anthrax Detection
Elizabeth M. Begier*†, Nancy L. Barrett*, Patricia A. Mshar*, David G. Johnson*, James L. Hadler*
, and Connecticut Bioterrorism Field Epidemiology Response Team
, and Connecticut Bioterrorism Field Epidemiology Response Team
Table 2
Genus as predictor of incubation time, Connecticut gram-positive rod surveillance, March–December 2003
| Genus | No. isolates | Mean incubation (h) | Mean incubation difference* (h) | Standard error | p value* |
|---|---|---|---|---|---|
| Clostridium | 69 | 21.1 | Ref | Ref | Ref |
| Bacillus | 161 | 28.1 | 6.99 | 2.20 | 0.002 |
| Listeria | 13 | 30.7 | 9.60 | 4.63 | 0.038 |
| Lactobacillus | 20 | 33.3 | 12.19 | 3.89 | 0.002 |
| Corynebacterium | 220 | 43.8 | 22.62 | 2.11 | <0.001 |
| Other† | 15 | 43.1 | 21.94 | 4.36 | <0.001 |
*Mean difference is β-coefficient of univariate linear regression comparing each genus to Clostridium spp., the reference group; p value is the p value associated with that β-coefficient. Ref, reference.
†Other category includes Propionibacterium (7), Bifidobacterium (2), Brevibacterium (2), Actinomyces (1), Aureobacterium (1), Erysipelothrix (1), and Oerskovia spp. (1).
1The Connecticut Bioterrorism Field Epidemiology Response Team members are Kasia Frenette, Lisa LoBianco, Katy Marshall, Diana Mlynarski, Ava Nepaul, and Terry Rabatsky-Ehr.
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