Published Date: 2017-05-25 13:19:22
Subject: PRO/AH/EDR> Foot & mouth disease - China (03): (XJ) st A, bovine, OIE
Archive Number: 20170525.5060500
FOOT & MOUTH DISEASE - CHINA (03): (XINJIANG) SEROTYPE A, BOVINE, OIE
A ProMED-mail post http://www.promedmail.org
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Date: Wed 24 May 2017
Source: OIE, WAHID (World Animal Health Information Database), weekly disease information 2017; 30(21) [edited]
http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=23862
Foot-and-mouth disease, China (People's Rep. of)
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Information received on [and dated] 24 May 2017 from Dr Zhang Zhongqui, Director General, China Animal Disease Control Centre, Veterinary Bureau, Ministry of Agriculture, Beijing, China (People's Rep. of)
Summary
Report type: immediate notification
Date of start of the event: 24 Apr 2017
Date of confirmation of the event: 4 May 2017
Reason for notification: recurrence of a listed disease
Date of previous occurrence: 12 Dec 2013
Manifestation of disease: clinical disease
Causal agent: Foot and mouth disease virus
Serotype: A
Nature of diagnosis: clinical, laboratory (basic), laboratory (advanced)
This event pertains to a defined zone within the country.
New outbreaks (2)
Outbreak 1: Aksu, Wushi, Xinjiang
Date of start of the outbreak: 24 Apr 2017
Outbreak status: Continuing (or date resolved not provided)
Epidemiological unit: farm
Affected animals
Species / Susceptible / Cases / Deaths / Killed and disposed of / Slaughtered
Cattle / 1035 / 221/ 32 / 1003 / 0
Outbreak 2: Changji Hui Autonomous Prefecture, Fukang, Xinjiang
Date of start of the outbreak: 28 Apr 2017
Outbreak status: Continuing (or date resolved not provided)
Epidemiological unit: farm
Affected animals
Species / Susceptible / Cases / Deaths / Killed and disposed of / Slaughtered
Cattle / 275 / 16 / - / 275 / 0
Summary of the outbreaks, total outbreaks: 2
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of / Slaughtered
Cattle / 1310 / 237/ 32 / 1278 / 0
Outbreak statistics (rates apparent, in percentages)
Species / morbidity rate / mortality rate / case fatality rate / Proportion susceptible animals lost*
Cattle / 18.09 / ** / ** / **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
Source of the outbreak(s) or origin of infection: introduction of new live animals
Epidemiological comments: the 1st outbreak occurred in 4th regiment, 1st Agricultural Division, Xinjiang Production and Construction Corps, and is located in Wushi county. The 2nd outbreak occurred in 6th Agricultural Division, and is located in Fukang city. Clinical signs were observed by local veterinary authority through active surveillance. WAHIAD note: both outbreaks were first notified on [9 May 2017] within follow-up report no. 2 about foot-and-mouth disease serotype O. [WAHIAD: World Animal Health Information and Analysis Department-OIE. - Mod.CRD]
Control measures
Measures applied: movement control inside the country, vaccination in response to the outbreak(s), surveillance within containment and/or protection zone, quarantine, official disposal of carcasses, by-products and waste, stamping out, disinfection, no treatment of affected animals
Measures to be applied: No other measures
Diagnostic test results
Laboratory name and type: Lanzhou Foot and Mouth Disease National Reference Laboratory (OIE reference laboratory
Species / Test / Test date / Result
Cattle / reverse transcription-polymerase chain reaction (RT-PCR) / 4 May 2017 / Positive
[The location of the outbreaks can be seen on the interactive map at the source URL above.]
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[The following comment by Mod.AS, published in posting 20160407.4144383, is applicable here:
"FMD is regarded to be endemic in China. According to the People's Republic of China page on the WRLFMD [World Reference Laboratory for Foot-and-Mouth Disease] website, last updated in 2015, the following serotypes have been recorded there throughout the years:
FMDV-O: 1958, 1986, 1999-2001, 2003, 2005, 2010-2014
FMDV-A: 1951, 1958, 1960, 1962, 1964, 2009-2010, 2013-2014
FMDV-C: 0000
FMDV-Asia 1: 1958, 2005-2009
FMDV-SAT 1: 0000
FMDV-SAT 2: 0000
FMDV-SAT 3: 0000
China's annual reports to the OIE since 2010 mention 2 circulating serotypes: O and A. According to the 2013 genotyping results, as presented in the WRLFMD website, the FMDV-A strain circulating in China is a topotype ASIA, lineage Sea-97 strain; for details, see http://www.wrlfmd.org/fmd_genotyping/2013/WRLMEG-2013-00009%20A%20PR%20China%202013.pdf." - Mod.CRD]
