Zhou Z.,Sichuan Agricultural University |
Zhou X.,Sichuan Agricultural University |
Peng G.,Sichuan Agricultural University |
Tang T.,Sichuan Agricultural University |
And 8 more authors.
Acta Theriologica Sinica | Year: 2014
Six squirrel monkeys died suddenly in an animal park of Ya'an in February 18th to 20th, 2013. During that time, ~100 squirrel monkeys were infected and had different symptoms which caused significant losses at the zoo. To find the reasons and treatments of this infectious disease, we first examined tissue changes by using anatomy and pathological sections: we then detected pathogens by isolation and culture of bacteria, identified the pathogens by biochemical testing and molecular identification; after that, we searched for the characterizations of pathogenicity and epidemiology through experiments of animal regression and drug resistance; and finally controlled this disease by a series of emergency measures. The results showed that various monkey's organs had serious congestion necrosis and severe tissue lesions caused by a large number of bacteria. The pathogen was Yersinia pseudotuberculosis which was similar as Yersinia pestis. The pathogen had strong abilities of pathogenicity, epidemiology and drug resistance, but was sensitive to Amikacin. This is the first study to find and report a case of squirrel monkeys infected with Yersinia pseudotuberculosis in our country, and provides a basis of reference in the diagnosis and treatment, epidemiological studies and pathological model building.