Volume 17, Number 5—May 2011
Research
Genotypic Profile of Streptococcus suis Serotype 2 and Clinical Features of Infection in Humans, Thailand
Kazunori Oishi, Surang Dejsirilert, Parichart Puangpatra, Saowalak Sripakdee, Koranan Chumla, Nitsara Boonkerd, Pitimol Polwichai, Susumu Tanimura, Dan Takeuchi, Tatsuya Nakayama, Shota Nakamura, Yukihiro Akeda, Marcelo Gottschalk, Pathom Sawanpanyalert, and Anusak Kerdsin
Table 3
Demographic and clinical features of 158 human cases of Streptococcus suis serotype 2 infections, Thailand, January 2006–August 2008*
| Characteristic | All, n = 158 | Fatal, n = 15; 9.5% | Nonfatal, n = 143; 90.5% | p value |
|---|---|---|---|---|
| Demographic | ||||
| Male sex, % | 72.8 | 66.7 | 73.4 | 0.386 |
| Mean (median) age, y† | 56.6 (55.0) | 53.9 (52.5) | 57.0 (56.0) | 0.264 |
| Period of admission, d, mean (median) |
12.5 (11) |
10.1 (6) |
12.9 (12) |
0.737 |
| Meningitis category, no. (%) cases | ||||
| Confirmed meningitis | 22 (13.9) | 1 (6.7) | 21 (14.7) | 0.348 |
| Bacteremic meningitis | 44 (27.8) | 1 (6.7) | 43 (30.1)‡ | 0.043 |
| Probable meningitis |
27 (17.1) |
6 (40.0) |
21 (14.7)§ |
0.013 |
| Nonmeningitis category, no. (%) cases | ||||
| Septic arthritis | 5 (3.2) | 0 | 5 (3.2) | 1 |
| Infective endocarditis | 3 (1.9) | 1 (6.7) | 2 (1.4) | 0.905 |
| Bacteremic pneumonia | 1 (0.6) | 0 | 1 (0.7) | 1 |
| Sepsis |
56 (35.4) |
6 (40.0) |
50 (35.0) |
0.698 |
| Signs and symptoms, no. (%) cases | ||||
| Diarrhea | 28 (17.1) | 5 (33.3) | 23 (16.1) | 0.1 |
| Hearing loss | 34 (21.5) | 4 (26.7) | 30 (21.0) | 0.409 |
| Altered consciousness | 35 (22.2) | 4 (26.7) | 31 (21.7) | 0.434 |
| Shock |
9 (5.7) |
2 (13.3) |
7 (4.9) |
0.205 |
| Possible risk factors, no. (%) cases | ||||
| Recent consumption of raw pork products | 52 (32.9) | 5 (33.3) | 47 (32.9) | 0.589 |
| Recent exposure to pigs | 11 (7.0) | 2 (13.3) | 9 (6.3) | 0.28 |
| Alcohol abuse | 33 (21.0) | 5 (33.3) | 28 (19.6) | 0.178 |
*Statistical analyses were performed by using the χ2 or Fisher exact test.
†Ages were not available for 3 patients.
‡One case of bacteremic meningitis was associated with pneumonia.
§Two cases of probable meningitis were associated with spondylodiscitis.
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