Thursday, July 5, 2018

PRO/AH/EDR> Foot & mouth disease - China (08): (YN) st O, swine, OIE, RFI

FOOT & MOUTH DISEASE - CHINA (08): (YUNNAN) SWINE, SEROTYPE O, OIE,
REQUEST FOR INFORMATION
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Date: Wed 4 Jul 2018
Source: OIE, WAHID (World Animal Health Information Database), weekly
disease information 2018; 31(27)
<http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=27076>


Foot-and-mouth disease, China (People's Rep. of)
------------------------------------------------
Information received on [and dated] 4 Jul 2018 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: 10 Jun 2018
Date of confirmation of the event: 27 Jun 2018
Report date: 4 Jul 2018
Date submitted to OIE: 4 Jul 2018
Reason for notification: new strain of a listed disease
Manifestation of disease: clinical disease
Causal agent: Foot and mouth disease virus
Serotype: O
Nature of diagnosis: clinical, laboratory (basic), laboratory
(advanced)
This event pertains to a defined zone within the country

New outbreaks (1)
Summary of outbreaks
Total outbreaks: 1
Outbreak 1: Yuxi City, Xinping YizuDaizu Autonomous County, Yunnan
Date of start of the outbreak: 10 Jun 2018
Outbreak status: continuing (or date resolved not provided)
Epidemiological unit: livestock market
Total animals affected
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered
Swine / 62 / 3 / 1 / 61 / 0
Outbreak statistics [rates apparent, expressed as percentages]
Species / morbidity rate / mortality rate / case fatality rate /
Proportion susceptible animals lost*
Swine / 4.84 / 1.61 / 33.33 / 100
*Removed from the susceptible population through death, destruction,
and/or slaughter

Epidemiology
Source of the outbreak(s) or origin of infection: legal movement of
animals
Control measures
Measures applied: movement control inside the country, screening,
quarantine, official destruction of animal products, official disposal
of carcasses, by-products and waste, stamping out, zoning,
disinfection, vaccination permitted (if a vaccine exists), no
treatment of affected animals

Measures to be applied: no other measures
Diagnostic test results
Laboratory name and type / Species / Test / Test date / Result
Lanzhou National Reference Laboratory for Foot and Mouth Disease (OIE
reference laboratory) / Swine / gene sequencing / 27 Jun 2018 /
Positive
Lanzhou National Reference Laboratory for Foot and Mouth Disease (OIE
reference laboratory) / Swine / reverse transcription-polymerase chain
reaction (RT-PCR) / 27 Jun 2018 / Positive

Future reporting
The event is continuing. Weekly follow-up reports will be submitted.

[The location of the outbreak can be seen on the interactive map at
the source URL above.]

--
Communicated by:
ProMED-mail
<promed@promedmail.org>

[The European Commission for the Control of Foot-and-Mouth Disease
(EuFMD) monthly report "Global Foot-and-Mouth Disease Situation", May
2018 (see
<http://www.fao.org/fileadmin/user_upload/eufmd/FMD_reports_GMR/May_GMR_2018_270618.pdf>)
notes, re China:

"A new FMD outbreak, due to serotype O occurred on 5 May 2018 in a
cattle and goat farm at Hubei, as confirmed by the Lanzhou National
Reference Laboratory for Foot and Mouth Disease (OIE reference
laboratory) on cattle samples examined using reverse
transcription-polymerase chain reaction (RT-PCR) and gene sequencing.

"Previous outbreaks in the country due to the same serotype had
occurred in February and March 2018, respectively in Xinjiang and
Guangxi.

"While the source of the outbreak is unknown, the sanitary measures
implemented are movement control inside the country, screening,
quarantine, official destruction of animal products, official disposal
of carcasses, by-products and waste, stamping out, disinfection,
vaccine permitted if a suitable one is available. No treatment is
being administered to the affected animals."

A summary table of the animals involved in the outbreak as well as a
map with the location of the outbreaks are available in the same EuFMD
May 2018 report.

Since the start of 2018, China has reported 21 new FMD outbreaks to
the OIE, of which 16 in "immediate notifications", which means they
were regarded as primary outbreaks. Of the 16, 10 were termed
"recurring", 5 were "new strains", and one was "1st occurrence".

China's terminology and considerations, as applied in the OIE reports,
are in need of some clarification. For example: the report of a "1st
occurrence", dated 5 Mar 2018, addressed FMDV serotype O, in Anyang,
Neihuang, Henan. The "affected species" was termed "sheep", the
"epidemiological unit" was "backyard". The number of susceptible
animals was 1200, of which 12 cases, 0 mortality, 1200 "killed and
disposed of". The species named in relation to laboratory tests
applied (RT-PCR and gene sequencing), were "goats"; see at
<http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review/viewsummary?fupser=&dothis=&reportid=26061>.

One of the rising questions: what does "1st occurrence" mean? 1st in
country? 1st in province? 1st in species? Otherwise?

As to "new strains", China's policy to apply gene sequencing for each
outbreak is most commendable; details on the sequencing results and
identity rate with other strains, either in the OIE reports or
elsewhere being electronically accessible, will be warmly welcomed. -
Mod.AS

HealthMap/ProMED-mail map of Xinping, Yunnan, China:
<http://healthmap.org/promed/p/64335>]

[See Also:
Foot & mouth disease - China (07): (SX) st. O, cattle, OIE
http://promedmail.org/post/20180615.5858772
Foot & mouth disease - China (06): (AH) st O, cattle, OIE
http://promedmail.org/post/20180614.5853916
Foot & mouth disease - China (05): (GX) st O, swine, OIE
http://promedmail.org/post/20180424.5766065
Foot & mouth disease - China (04): (GS) st O, livestock, OIE
http://promedmail.org/post/20180415.5747696
Foot & mouth disease - China (03): (HE) st. O, livestock, OIE
http://promedmail.org/post/20180309.5675925
Foot & mouth disease - China (02): (NX) st. O, livestock, OIE
http://promedmail.org/post/20180129.5593103
Foot & mouth disease - China (GZ): st O & A, livestock, OIE
http://promedmail.org/post/20180112.5552627
2017
----
Foot & mouth disease - China (04): (GD) st O, porcine
http://promedmail.org/post/20171031.5416545
Foot & mouth disease - China (03): (XJ) st A, bovine, OIE
http://promedmail.org/post/20170525.5060500
Foot & mouth disease - China (02): (XJ) st. O, bovine, spread, OIE
http://promedmail.org/post/20170424.4992077
Foot & mouth disease - China: (Tibet) serotype O, bovine, OIE
http://promedmail.org/post/20170209.4827357
2016
----
Foot & mouth disease - China (03): (XJ) st O, bovine, OIE
http://promedmail.org/post/20161130.4666050
Foot & mouth disease - China (02): (JX) st O, porcine, OIE
http://promedmail.org/post/20161124.4653143
Foot & mouth disease - China: porcine, st A
http://promedmail.org/post/20160407.4144383
2015
----
Foot & mouth disease - China (04): porcine, susp, spread
http://promedmail.org/post/20151218.3871669
Foot & mouth disease - China (03): porcine, susp.
http://promedmail.org/post/20151214.3861928
Foot & mouth disease - China (02): porcine, spread susp
http://promedmail.org/post/20151203.3837323
Foot & mouth disease - China (02): (LN) porcine, susp, RFI
http://promedmail.org/post/20151021.3732794
Foot & mouth disease - China: (AH) st A, porcine, spread
http://promedmail.org/post/20150107.3077530
2014
----
Foot & mouth disease - China (04): (JS) st. O, porcine, OIE
http://promedmail.org/post/20141126.2992235
Foot & mouth disease - China (03): (JS) st. A, porcine, OIE
http://promedmail.org/post/20140704.2588229
Foot & mouth disease - China (02): (JX) st O, bovine, OIE
http://promedmail.org/post/20140419.2415132
Foot & mouth disease - China: Tibet, st A, bovine, spread
http://promedmail.org/post/20140119.2184046]
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