Table 1. Surveillance for AMES cases in 4 China prefectures, September 2006–December 2009*.
| Variable | Province/prefecture |
Total | |||
|---|---|---|---|---|---|
| Shandong/Jinan | Hubei/Yichang | Hebei/Shijiazhuang† | Guangxi/Guigang | ||
| Total population (no. <5 y of age) |
6,107,497 (353,672) |
3,911,518 (236,036) |
5,062,679 (314,180) |
4,113,366 (261,302) |
|
| Project duration, mo |
40 |
40 |
32 |
32 |
|
| Total no. cases |
2,647 |
1,631 |
2,093 |
1,505 |
7,876 |
| Cases in sentinel hospitals, no. (%) | 1,200 | 1,055 | 959 | 1,498 | 4,712 |
| Residents | 607 (50.6) | 979 (92.8) | 439 (45.8) | 1,474 (98.4) | 3,499 (74.3) |
| Nonresidents | 593 (49.4) | 76 (7.2) | 520 (54.2) | 24 (1.6) | 1,213 (25.7) |
| Residents <5 y of age | 170 (44.2) | 161 (92.5) | 149 (37.2) | 671 (98.4) | 1,151 (70.1) |
| Nonresidents <5 y of age |
215 (55.8) |
13 (7.5) |
252 (62.8) |
11 (1.6) |
491 (29.9) |
| Cases in nonsentinel hospitals, no. (%) | 1,447 | 576 | 1,134 | 7 | 3,164 |
| Residents | 1,241 (85.8) | 574 (99.7) | 1,067 (94.1) | 7 (100.0) | 2,889 (91.3) |
| Nonresidents | 206 (14.2) | 2 (0.3) | 67 (5.9) | 0 (0) | 275 (8.7) |
| Residents <5 y of age | 193 (87.7) | 105 (100.0) | 360 (96.0) | 4 (100.0) | 662 (94.0) |
| Nonresidents <5 y of age |
27 (12.3) |
0 (0) |
15 (4.0) |
0 (0) |
42 (6.0) |
| Cases among prefecture residents per year/100,000 persons | |||||
| Residents | 9.08 | 11.91 | 11.16 | 13.50 | |
| Residents <5 y of age | 30.79 | 33.81 | 60.75 | 96.87 | |
*AMES, acute meningitis and encephalitis syndrome. †Only 13 counties in Shijiazhuang Prefecture were included in the project.