Investigation of surveillance on occupational population of highly pathogenic avian influenza in Xinjiang Production and Construction Corps, 2012-2014

Abstract

Objective In order to investigate the status of the high risk population of avian influenza in Xinjiang Production and Construction Corps, explore occupational population exposure avian influenza risk factors for the prevention of avian influenza to provide a scientific basis. Methods Using the horse red blood cell hemagglutination inhibition(HI) tests to detect H5 hemagglutinin antibody for occupational population. Results From 2012 to 2014, 563 serum specimens were collected from the occupational populations, the antibody positive rates for H5 subtypes were 0.36%. 71 person had received influenza vaccine in recent years, vaccination rate was 12.61%. Avian influenza vaccine inoculation was 76.91% among the occupational populations contacted with poultry. 6.22% serum samples with titer(20≤HI 0.05); and also no statistical difference(χ2=0.284, P>0.05)for the populations contacted with bird flu but given vaccination. Conclusion The H5 subtypes avian influenza virus caused asymptomatic infection was proved to be existed within the population exposed to the poultry in Xinjiang Production and Construction Corps, suggesting that the poultry occupational population was under the risk of avian influenza virus infection. Strengthen the monitoring, to carry out avian influenza health prevention knowledge propaganda and take appropriate behavioral intervention, for the early warning and prevention of avian influenza has a very important significance. Key words: Avian influenza; occupational population; Surveillance