Singapore - Outbreak of Old World screwworm (Chrysomya bezziana) in animals in zoo (OIE, January 19, 2018)

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[TD="width: *, align: left"] Old world screwworm (Chrysomya bezziana),
Singapore
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[TD="class: topbigtabletitle27"]Information received on 19/01/2018 from Dr Him Hoo Yap, Chief Veterinary Officer, Director General, Deputy CEO, Regulatory Programmes and Operations, Agri-Food & Veterinary Authority, Singapore, Singapore[/TD]
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[TD] Summary
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[TD="class: filtrer_th, width: 10%"]Report type[/TD]
[TD="width: 30%"]Immediate notification (Final report)[/TD]
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[TD="class: filtrer_th, width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]14/08/2017[/TD]
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[TD="class: filtrer_th, width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]20/12/2017[/TD]
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[TD="class: filtrer_th, width: 10%"]Report date[/TD]
[TD="width: 30%"]19/01/2018[/TD]
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[TD="class: filtrer_th, width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]19/01/2018[/TD]
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[TD="class: filtrer_th, width: 10%"]Date event resolved[/TD]
[TD="width: 30%"]17/01/2018[/TD]
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[TD="class: filtrer_th, width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]First occurrence of a listed disease in the country[/TD]
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[TD="class: filtrer_th, width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Old world screwworm (Chrysomya bezziana)[/TD]
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[TD="class: filtrer_th, width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Clinical, Laboratory (basic)[/TD]
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[TD="class: filtrer_th, width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]the whole country[/TD]
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[TD] New outbreaks (1)
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[TD="class: filtrer_th ta_left, align: left"]Outbreak 1[/TD]
[TD="class: filtrer_th ta_left"]Singapore Zoo, SINGAPORE[/TD]
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[TD="class: filtrer_th ta_left"]Date of start of the outbreak[/TD]
[TD]14/08/2017[/TD]
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[TD="class: filtrer_th ta_left"]Outbreak status[/TD]
[TD]Resolved (17/01/2018)[/TD]
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[TD="class: filtrer_th ta_left"]Epidemiological unit[/TD]
[TD]Zoo[/TD]
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[TD="class: filtrer_th ta_left"]Affected animals[/TD]
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[TD="class: filtrer_th ta_center last"]Species[/TD]
[TD="class: filtrer_th ta_center last"]Susceptible[/TD]
[TD="class: filtrer_th ta_center last"]Cases[/TD]
[TD="class: filtrer_th ta_center last"]Deaths[/TD]
[TD="class: filtrer_th ta_center last"]Killed and disposed of[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
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[TD]Sambar:Cervus unicolor(Cervidae)[/TD]
[TD="class: ta_right"]16000[/TD]
[TD="class: ta_right"]8[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]2[/TD]
[TD="class: ta_right"]0[/TD]
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[TD="class: filtrer_th ta_left"]Affected population[/TD]
[TD]Maggot larvae had been observed to be infesting the wounds of a variety of species. Samples of maggot larvae were obtained from live sambar (Rusa unicolor or Cervus unicolor) exhibiting signs of infestation. There are 16,000 susceptible animals at the Singapore zoo.[/TD]
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[TD="class: filtrer_th ta_left, align: left"]Summary of outbreaks[/TD]
[TD="class: filtrer_th ta_left"]Total outbreaks: 1[/TD]
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[TD="class: filtrer_th ta_left"]Total animals affected[/TD]
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[TD="class: filtrer_th ta_center last"]Species[/TD]
[TD="class: filtrer_th ta_center last"]Susceptible[/TD]
[TD="class: filtrer_th ta_center last"]Cases[/TD]
[TD="class: filtrer_th ta_center last"]Deaths[/TD]
[TD="class: filtrer_th ta_center last"]Killed and disposed of[/TD]
[TD="class: filtrer_th ta_center last"]Slaughtered[/TD]
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[TD]Sambar:Cervus unicolor(Cervidae)[/TD]
[TD="class: ta_right"]16000[/TD]
[TD="class: ta_right"]8[/TD]
[TD="class: ta_right"]0[/TD]
[TD="class: ta_right"]2[/TD]
[TD="class: ta_right"]0[/TD]
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[TD="class: filtrer_th ta_left"]Outbreak statistics[/TD]
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[TD="class: filtrer_th ta_center last"]Species[/TD]
[TD="class: filtrer_th ta_center last"]Apparent morbidity rate[/TD]
[TD="class: filtrer_th ta_center last"]Apparent mortality rate[/TD]
[TD="class: filtrer_th ta_center last"]Apparent case fatality rate[/TD]
[TD="class: filtrer_th ta_center last"]Proportion susceptible animals lost*[/TD]
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[TD]Sambar:Cervus unicolor(Cervidae)[/TD]
[TD="class: ta_right"]0.05%[/TD]
[TD="class: ta_right"]0.00%[/TD]
[TD="class: ta_right"]0.00%[/TD]
[TD="class: ta_right"]0.01%[/TD]
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[TD="class: filtrer_th ta_left, colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]
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[TD] Epidemiology
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[TD="class: filtrer_th ta_left"]Source of the outbreak(s) or origin of infection[/TD]
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• Vectors

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[TD="class: filtrer_th ta_left"]Epidemiological comments[/TD]
[TD]No cases have been detected in livestock farms. The detection of Old World screwworm based on morphological examination has also been supported by third party laboratory examination on 20th December 2017.[/TD]
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[TD] Control measures
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[TD="class: filtrer_th ta_left"]Measures applied[/TD]
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• Quarantine
• Official disposal of carcasses, by-products and waste
• Disinfection
• Ante and post-mortem inspections
• Vaccination permitted (if a vaccine exists)
• Treatment of affected animals (Wound is cleaned and larvicide applied. Wounds are monitored.)

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[TD="class: filtrer_th ta_left"]Measures to be applied[/TD]
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• Surveillance within containment and/or protection zone
• Disinfestation
• Control of vectors

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[TD] Diagnostic test results
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[TD="class: filtrer_th ta_left"]Laboratory name and type[/TD]
[TD="class: filtrer_th ta_left"]Species[/TD]
[TD="class: filtrer_th ta_left"]Test[/TD]
[TD="class: filtrer_th ta_left"]Test date[/TD]
[TD="class: filtrer_th ta_left last"]Result[/TD]
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[TD="class: filtrer"]Animal Health Laboratory (National laboratory)[/TD]
[TD="class: filtrer"]Sambar[/TD]
[TD="class: filtrer"]parasitological examination[/TD]
[TD="class: filtrer"]20/12/2017[/TD]
[TD="class: filtrer cb-centree last"]Positive[/TD]
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[TD] Future Reporting
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[TD="class: filtrer"]The event is resolved. No more reports will be submitted.[/TD]
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http://www.oie.int/wahis_2/public/w...?page_refer=MapFullEventReport&reportid=25466