Volume 20, Number 12—December 2014
Letter
Zoonotic Baylisascaris procyonis Roundworms in Raccoons, China
Yue Xie, Xuan Zhou, Mei Li, Tianyu Liu, Xiaobin Gu, Tao Wang, Weimin Lai, Xuerong Peng, and Guangyou Yang
Table
Prevalence of Baylisascaris procyonis roundworm infections among captive raccoons, China, 2011–2013*
| Location, zoological gardens | No. B. procyonis–positive samples/total no. samples (%) |
||||||
|---|---|---|---|---|---|---|---|
| Sex |
Age group |
Total | |||||
| M | F | Adult | Juvenile | ||||
| Western region | 33/146 (23) | ||||||
| Chongqing | – | 0/4 | 0/4 | – | 0/4 | ||
| Bifengxia | 0/8 | 0/14 | 0/13 | 0/9 | 0/22, 0/22 | ||
| Chengdu | 0/4 | 1/5 (20) | 0/6 | 1/3 (33) | 1/9 (11), 0/9 | ||
| Xi'an Wildlife | 0/9 | 1/27 (4) | 0/28 | 1/8 (13) | 1/36 (3) | ||
| Kunming | 12/12 (100) | 15/15 (100) | 22/22 (100) | 5/5 (100) | 27/27 (100) | ||
| Kunming Wildlife |
1/24 (4) |
3/24 (13) |
4/48 (8) |
– |
4/48 (8) |
||
| Central region | 2/56 (4) | ||||||
| Harbin Northern Forest | 0/12 | 0/18 | 0/21 | 0/9 | 0/30 | ||
| Zhengzhou | 1/5 (20) | 1/11 (9) | 2/12 (17) | 0/4 | 2/16 (13) | ||
| Changsha |
0/3 |
0/7 |
0/5 |
0/5 |
0/10 |
||
| Eastern region | 0/75 | ||||||
| Beijing | 0/16 | 0/24 | 0/22 | 0/18 | 0/40 | ||
| Guangzhou | 0/5 | 0/15 | 0/20 | – | 0/20 | ||
| Shanghai Wildlife |
0/4 |
0/11 |
0/9 |
0/6 |
0/15 |
||
| Total | 14/102 (14) | 21/175 (12) | 28/210 (13) | 7/67 (10) | 35/277 (13) | ||
| p value | 0.677 | 0.536 | – | ||||
*Raccoons, considered to be exotic ornamental animals, are mainly kept in 18 zoologic gardens (ZGs) in China; 12 ZGs were examined for B. procyonis prevalence during the study period. Sichuan ZGs, including Bifengxia ZG and Chengdu ZG, were tested twice during this surveillance period. –, no raccoons in the group or no data available.
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