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Published Date: 2017-04-11 05:27:51
Subject: PRO/AH/EDR> Anthrax - France: (HM) bovine
Archive Number: 20170411.4962011
A ProMED-mail post
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International Society for Infectious Diseases

Date: 10 Apr 2017
Source: OIE WAHID [edited]

Anthrax - France
Information received on 10 Apr 2017 from Dr Loic Evain, directeur général adjoint, CVO, Direction générale de l'alimentation, Ministère de l'Agriculture, de l'Agroalimentaire et de la Forêt, Paris, France

Report type: immediate notification
Date of start of the event: 1 Apr 2017
Date of confirmation of the event: 6 Apr 2017
Report date: 7 Apr 2017
Reason for notification: recurrence of a listed disease
Date of previous occurrence: 1 Nov 2016
Manifestation of disease: clinical disease
Causal agent: _Bacillus anthracis_
Nature of diagnosis: clinical, laboratory (advanced), Necropsy
This event pertains to a defined zone within the country.

New outbreaks (1)
Outbreak 1: Germainvilliers, Haute-Marne
Date of start of the outbreak: 1 Apr 2017
Outbreak status: continuing (or date resolved not provided)
Epidemiological unit: farm
Affected animals:
Species / Susceptible / Cases / Deaths / Destroyed / Slaughtered
Cattle / 467 / 12 / 12 / 0 / 0
Affected population: 12 bovines died on the farm between 1-2 Apr 2017. A history of anthrax dating back to 2013 was reported on the same farm. Non-vaccinated bovines on the farm were immediately treated with antibiotic therapy, and no other deaths have been reported since.

Summary of outbreaks: total outbreaks: 1
Total animals affected:
Species / Susceptible / Cases / Deaths / Destroyed / Slaughtered
Cattle / 467 / 12 / 12 / 0 / 0
Outbreak statistics [rates apparent, expressed in percentages]:
Species / morbidity rate / mortality rate / case fatality rate / Proportion susceptible animals lost*
Cattle / 2.6 / 2.6 / 100 / 2.6
*Removed from the susceptible population through death, destruction and/or slaughter

Source of the outbreak(s) or origin of infection: fomites (humans, vehicles, feed, etc)
Epidemiological comments: contamination is suspected to be the result of fodder coming from a previously infected field. Investigation is ongoing.

Control measures:
Measures applied: movement control inside the country; vaccination in response to the outbreak(s); disinfection/disinfestation; traceability; official disposal of carcasses, by-products, and waste; treatment of affected animals (antibiotic therapy)
Measures to be applied: no other measures

Diagnostic test results:
Laboratory name and type / Species / Test / Test date / Result
ANSES National laboratory for Animal health, Maisons-Alfort (National laboratory) / Cattle / bacteriological examination / 6 Apr 2017 / Positive

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

Map of outbreak locations [See OIE website for a map showing the outbreak in northeast France].

communicated by:

[Unfortunately, we do not have a report of the previous outbreak on this farm on 1 Nov 2016, nor the earlier outbreak in 2013. If the French authorities had archived the cultures from these previous cases, it would be possible to genomically compare them and see whether they provide evidence for an on-farm repetition of risk.

Fodder contamination is usually associated with wet weather during harvesting. For a dozen animals to be affected over 48 hours suggests a high level of fodder contamination. Glad to see that an immediate prophylactic treatment with antibiotics stopped the outbreak fast. We look forward to reading the results of the ongoing investigation. - Mod.MHJ

A HealthMap/ProMED-mail map can be accessed at:]

See Also

Anthrax - France (04): (MO) bovine 20160906.4469824
Anthrax - France (03): (AO) bovine, new susp cases 20160820.4430388
Anthrax - France (02): (AO) bovine 20160807.4400115
Anthrax - France: (AR) bovine, OIE 20160804.4394822
Anthrax - France: (RA) conf. heroin case 20120714.1201908
Anthrax, human, livestock, 1999-2009 - France 20101014.3730
Anthrax, bovine - France (03): (AV) caprine 20090811.2863

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