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The fallen birds 倒下的鳥兒

(added on 2012/02/13)

©2012 SpatioEpi.com
Data source: Agriculture, Fisheries and Conservation Department, HKSAR
Map created by CUHK SpatioEpi Group


This map shows the distribution of confirmed H5-infected dead birds found within the territory of Hong Kong since 2008. As depicted by graduated colours, most of the birds were collected from the New Territories, especially along the coastlines. This phenomenon is different from that in 2006-2007, when a larger proportion were found in urban Kowloon and Hong Kong Island.

As shown by coloured symbols, two clusters of H5-infected dead birds were located in Lantau Island and Yuen Long. Most of the dead birds in the Yuen Long cluster were migratory birds found in the vicinity of Mai Po Nature Reserve. Along the north-western shores of Lantau Island, there was another cluster composed mainly of poultry. Overall, the natural landscape, human activities and direction of river flow might have explained the distribution and type of H5-infected dead birds in Hong Kong.

Data for the map were obtained from Agriculture, Fisheries and Conservation Department, Hong Kong Special Administrative Region Government.




Related Article

Preventive measures against avian influenza 禽流感防控措施

Hong Kong Government has implemented a number of preventive measures to reduce the risk of avian influenza outbreaks in the territory. For example, backyard poultry keeping is prohibited and local poultry farms are inspected on a regular basis. For chickens in local farms and imported chickens, vaccination is required and virological testing for H5 antigen is enhanced. At retail level, live poultry is not allowed to be kept overnight, and two 'rest days' per month have been introduced to all poultry stalls in public markets and fresh provision shops selling live poultry for thorough cleansing.

In addition, poultry workers and cullers are also invited to be vaccinated against seasonal influenza, so the chance of genetic reassortment between human and avian influenza viruses can be minimized.



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