关键词: 鼠疫, 动物, 监测, 新疆

Abstract: Objective To investigate the prevalence of animal plague in Marmota baibacina-Spermophilus undulatus natural focus and provide basis for prevention and control of plague. Methods Surveillance was carried out on the density of S. undulatus and M. baibacina in Guertu between 2006 and 2010 according to the rule of plague prevention and surveillance in Xinjiang. The four-step test was performed for inspect visceral organs and body fleas of S. undulatus. Indirect hemagglutination assay was used to detect F1 antibody in the serum of S. undulatus and shepherd dogs. Statistical analysis was performed using Excel 2007 software according to animal plague epidemiology. Results The mean density of S. undulatus and M. baibacina in Guertu plague focus between 2006 and 2010 were 14.64/hm² and 0.61/hm², respectively. The rate of carrying flea was 90.72% and the mean flea index was 7.09. The serological test showed that 130 were positive for F1 antibody among 2 532 serum samples of S. undulatus, and 8 were positive for F1 antibody among 132 serum samples of shepherd dogs. A total of 67 strains of Yersinia pestis were isolated from S. undulatus and its body fleas. Conclusion The plague among S. undulatus in Xinjiang has been prevalent for many years, and human beings might be infected. Thus, surveillance should be performed actively and publicity should be also carried out at the same time.

Key words: Plague, Animal, Surveillance, Xinjiang