A retrospective analysis on the epidemic of human and livestock brucellosis and the prevention and control measures in Zhejiang Province / 预防医学

ABSTRACT

Objective To analyze the epidemic situation of human and livestock brucellosis in Zhejiang Province in recent sixty years and to put forward countermeasures for prevent and control.Methods Related data of prevention and cure of human and livestock brucellosis were collected from 1 996 to 201 4 and descriptive analysis was conducted.Results The positive rate of the livestock's bacteria was up to 22. 28%in the history of Zhejiang Province.Epidemic foci of B.canis and B.bovis in Zhejiang Province were confirmed.After achieving stability control standards of brucellosis,the positive rate of livestock brucellosis was low.But in recent years,meat goats from the north and local sheep have been detected positive for brucellosis in many places.The first case of brucellosis in Zhejiang Province was confirmed in 1 967.But only in the occupational population,there were sporadic cases of chronic stable type or occult infection.A total of 506 brucellosis cases have been reported and 767 new infections have been detected since the reappear of human brucellosis in 2003.The annual report incidence rate was increasing(χ2trend =9. 533,P=0. 002).There were nine cases of human brucellosis outbreak, occurring in Shaoxing,Hangzhou,Ningbo,Jinhua,Jiaxing and Quzhou City respectively.In the human or the animal, there were five biotypes and a total of 82 strains were detected.The dominant strains of Brucella was B .melitensis type 3. Conclusion At present the epidemic of livestock brucellosis in Zhejiang Province is mainly imported.The human epidemic mainly associated with input focus by livestock.With the increasing input of foreign sheep year by year ,human epidemic is at risk and there is a risk of proliferation.Therefore,we should strengthen the joint prevention and control of brucellosis and health and animal husbandry departments should take comprehensive prevention and control measures to fight against human and livestock brucellosis together.