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TRANSCRIPT
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Update : MqNfllnu 2551
Epidemic Analysis of Avian Influenza in Thailand
Sompob Sirimongkolrat', Pornpiroon ChinsonZ
Abstract _ ~ ~ . C Y , a , , l ~ _ W ~ . < v , , ~ _ r U Y - - - . ~ ~ . ~ r ~ ~ ~ ~ ~ "
The epidemiology of Av~an influenza disease has been reported from 8 the
Department of Livestock Development laboratories to Avian Influenza Control Center,
the Department of Livestock Development, Thailand since July 2004 to December 2005.
All 5,295 samples were selected and 1,733 samples (32.73%) were identify to HsN1.The
maximum outbreak was 743 samples (42.9% of proportion) in October 2004. The com-
parison between the first (first 9 months) and the last (last 9 months) periods of study
found incidence rate significantly decreased in last period (P-value<o.o5): The maxi-
mum infectious avian types were domestic chicken and layer duck (54.8 and 14.8% of
propo~ion, respectly). There were significantly different infections among avian types
(P-value<0.05). The Al infection could found in 52 provinces and 272 districts. Suphanburi
province had the highest incidence (16.4%) of Thailand. The 130 from 272 districts
(47.49%) had disease recurrence during 5 months. However; the recurrent rate obvi-
ously decreased after the national disease prevention and control strategic plan were
operated around the country.
Keyword: Avian influenza, Epidemic, Avian, Thailand ' Animal Disease Control Section, Bureau of Disease Control and Veterinary
Services, Dept of Livestock Development
Division of veterinary services, Bureau of Disease Control and Veterinary
Services, Dept of Livestock Development
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