Published Date: 2011-06-01 14:48:55
Subject: PRO/AH/EDR> Anthrax, bovine - Argentina: (BA)
Archive Number: 20110601.1676
ANTHRAX, BOVINE - ARGENTINA: (BUENOS AIRES)
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A ProMED-mail post
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International Society for Infectious Diseases
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Date: Tue 31 May 31 2011
From: Ramon Noseda <rnoseda@laboratorioazul.com.ar> [edited]
On [21 May 2011], an outbreak of anthrax occurred in the Azul [Buenos
Aires province] Alert and Response Program zone, specifically in the
Paraje El Destierro, corresponding to the Avenamiento no.5 road, where
since 1989 there have been 5 sporadic outbreaks of this zoonosis.
The herd comprised 84 adult cattle which had been corralled in the
feedlot for more than 80 days. One of these animals died suddenly,
passing blood from all its natural openings. The animals had been
vaccinated 150 [days?] before against anthrax. Usually annual
vaccination is adequate since the establishment does not have a
history of the disease. _Bacillus anthracis_ was isolated in a bone
(metacarpal), which was referred to the Veterinary Diagnostic
Laboratory [in Azul] for diagnosis. This isolate was sensitive to the
following veterinary antibiotics: penicillin, ampicillin,
tetracycline, gentamicin, florfenicol and ciprofloxacin.
The carcass was not burnt. The veterinary officer acted in an
efficient manner for the (animal's) disposal by applying the method of
"a controlled covering" [a thick plastic tarpaulin, pegged down -
Mod.MHJ] and sprayed 5 percent formalin for the elimination of any
spores and vegetative forms of _B. anthracis_.
--
Dr Ramon Noseda
Laboratorio Azul Diagnostico SA
Av 25 de Mayo 479
(B7300FXE) Azul - Pcia Bs As
Argentina
<rnoseda@laboratorioazul.com.ar>
http://www.laboratorioazul.com.ar
[Why a corralled animal should come down with anthrax is a puzzle.
Logically the 1st suspicion would be that the mineral supplement might
have been contaminated -- yet only one animal, not a number, was
clinically affected. So it would have to be a minimal dose with any
other animals having only a subclinical exposure. Or that there was an
unobserved nearby outbreak and a tabanid female fly with contaminated
mouthparts came by for a snack. Further investigations may resolve
this conundrum.
There is an unfortunate history of recently vaccinated animals
succumbing to this disease in Argentina. Why has resisted
investigation. They use a standard Sterne vaccine strain and standard
doses of the vaccine.
Our thanks to Ramon for this prompt report. To find Azul go to
http://www.fallingrain.com/world/AR/01/Azul.html. - Mod.MHJ]
[The HealthMap/ProMED-mail interactive map of Argentina can be seen
at http://healthmap.org/r/0W3a. Sr.Tech.Ed.MJ]
See Also
Anthrax, human, livestock, 2010 - Argentina 20110420.1234Anthrax, bovine, canine - Argentina (CB) 20110225.0627
2010
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Anthrax, bovine - Argentina (05): (BA) 20100921.3408
Anthrax, bovine - Argentina (04): (BA) 20100915.3341
Anthrax, bovine - Argentina (03): (BA) 20100731.2567
Anthrax, human, livestock, 2009 - Argentina (02): (BA) 20100705.2234
Anthrax, human, livestock, 2009 - Argentina 20100702.2207
Anthrax, bovine - Argentina (02): (BA) 20100424.1324
Anthrax, bovine - Argentina: (BA) 20100223.0608
Anthrax, human, bovine - Argentina (02): (BA) 20100208.0424
Anthrax, human, bovine - Argentina: (BA) 20100118.0207
2009
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Anthrax, bovine - Argentina (05): (BA) 20090825.2991
Anthrax, bovine - Argentina (04): (BA), abortion 20090716.2531
Anthrax, human, livestock, 2008 - Argentina 20090612.2179
Anthrax, bovine - Argentina (03): (Buenos Aires) 20090427.1588
Anthrax, human, bovine - Argentina (02): (BA) 20090305.0917
Anthrax, human, bovine - Argentina: (Buenos Aires) 20090108.0075
plus 15 more reports back to October 2001
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