Situation of avian influenza epidemic in Nghe An and Thanh Hoa province during 2019 - 6/2023
The study aims to evaluate and combine with analysis of the epidemiological situation of avian influenza epidemic in Nghe An and Thanh Hoa province to predict possible future developments of the epidemic. The results show that: The vaccination rate in Nghe An province has only reached from 35% to 57%. In Thanh Hoa province, the vaccination is performed better and is maintained every year, reaching a rate of 55% to 90%; In 2020, avian influenza epidemic occurred at a "strong outbreak, widespread spread" level in Nghe An, the remaining epidemics only occurred "locally, small and scattered" in 2 provinces out of 5 year of assessment. In Thanh Hoa province, after 2021, no epidemic will be detected locally; Evaluation of epidemiological characteristics shows that: avian influenza epidemics often occur concentrated from December of the previous year to March of the following year; Overall, over the course of the 5-year investigation, the rate of diseased and destroyed chickens was about 2 times the rate of culled waterfowl (67.04% compared to 32.96%).
To prevent the avian flu epidemic, these provinces need to continue to monitor the circulation of avian influenza virus and warn of the risk of disease outbreaks; Strengthen animal quarantine and transportation control to prevent illegal transportation of poultry and poultry products into the province; Coordinate with People's Committees of districts, towns and cities to accelerate the progress of avian influenza vaccination
