Loading ...
Sorry, an error occurred while loading the content.
 

INFORMATION ONLY: URUGUAY RVHD ALERT

Expand Messages
  • Pamela Alley
    Rabbit hemorrhagic disease - Uruguay: OIE ... From: ProMED-mail To: Sent: Sunday, January 16,
    Message 1 of 1 , Jan 16, 2005
      Rabbit hemorrhagic disease - Uruguay: OIE

      ----- Original Message -----
      From: "ProMED-mail" <promed@...>
      To: <promed-ahead@...>
      Sent: Sunday, January 16, 2005 4:25 AM
      Subject: PRO/AH> Rabbit hemorrhagic disease - Uruguay: OIE


      >
      > RABBIT HEMORRHAGIC DISEASE - URUGUAY: OIE
      > *****************************************
      > A ProMED-mail post
      > <http://www.promedmail.org>
      > ProMED-mail is a program of the
      > International Society for Infectious Diseases
      > <http://www.isid.org>
      >
      > [1]
      > Date: 30 Dec 2004
      > From: ProMED-mail<promed@...>
      > Source: OIE Disease Information 2004; 17(53) [edited]
      > <http://www.oie.int/eng/info/hebdo/AIS_12.HTM#Sec4>
      >
      >
      > Rabbit haemorrhagic disease in Uruguay
      > --------------------------------------
      > (disease never reported before in Uruguay)
      > This report is a translation of information received on 29 December 2004
      > (dated 28 Dec) from Dr Carlos A Correa Messuti, Ministry of Animal
      > Production, Agriculture and Fisheries, Montevideo:
      >
      > Nature of diagnosis: clinical, epidemiological and postmortem.
      > Date of suspicion: 24 Nov 2004.
      >
      > Outbreaks:
      > Location/No. of outbreaks
      > Montevideo city/ 40
      > Canelones department/ 4
      > San Jose department/ 1
      > Total 45
      >
      > Description of affected population: backyard domestic rabbits.
      >
      > Total number of animals in the outbreaks:
      > species / susceptible / cases / deaths / destroyed / slaughtered
      > lep / 4689 / 4689 / 2820 / 1869 / ...
      >
      > Diagnosis: the following signs were observed: sudden death, depression,
      > some rabbits showed nervous signs and bleeding from the mouth and
      > nostrils,
      > terminal scream.
      >
      > A. The diagnosis was made at DILAVE( Veterinary Laboratories Division --
      > the official laboratory of the General Directorate of Livestock Services),
      > using postmortem examinations in situ and histopathological examination.
      >
      > Epidemiology:
      > A. Source of agent/origin of infection: movements of animals, persons and
      > feed.
      > B. Other epidemiological details: the disease occurred in the suburban
      > areas of the city of Montevideo and in adjacent areas in the Departments
      > of
      > Canelones and San Jose.
      >
      > Control measures:
      > - culling of sick rabbits;
      > - disinfection of premises and equipment;
      > - spraying of insecticide;
      > - control of rodents and birds;
      > - burning and burying of dead rabbits, feedstuff, skins and faeces;
      > - recommendations have been issued aimed at preventing gatherings of
      > rabbit
      > producers and related persons;
      > - vaccination: arrangements are being made to import vaccine; vaccination
      > is due to be applied in at-risk areas and establishments where the disease
      > has not been registered but will not be applied in commercial rabbit farms
      > unless necessary;
      > - control of the movements of people, animals, and vehicles; ban on the
      > movement of rabbits to other establishments and slaughterhouses;
      > - exports of rabbits and by-products were immediately suspended.
      >
      > ******
      > [2]
      > Date: 15 Jan 2005
      > From: ProMED-mail<promed@...>
      > Source: OIE Disease Information 2005; 18(2) [edited]
      > <http://www.oie.int/eng/info/hebdo/AIS_10.HTM#Sec1>
      >
      >
      > Rabbit haemorrhagic disease In Uruguay
      > --------------------------------------
      > Follow-up from above report, from the OIE Reference Laboratory for rabbit
      > haemorrhagic disease(Istituto Zooprofilattico Sperimentale della Lombardia
      > e dell'Emilia Romagna "Bruno Ubertini", Brescia, Italy), received on (and
      > dated) 10 January 2005 from Dr Carlos A Correa Messuti, Ministry of Animal
      > Production, Agriculture and Fisheries, Montevideo:
      >
      > All 4 rabbit samples (liver and spleen) received were positive for rabbit
      > haemorrhagic disease virus (RHDV) when tested by the sandwich ELISA
      > (enzyme-linked immunosorbent assay) test specific for RHDV. A further
      > sandwich ELISA performed on the same 4 samples with a panel of 14
      > monoclonal antibodies specific for RHDV and its variant RHDVa confirmed
      > the
      > presence of the RHDVa variant.
      >
      > The RHDVa variant was first identified in Europe, in 1997. In Italy, it is
      > slowly replacing the original RHDV strain in the field. The rabbit
      > haemorrhagic disease virus identified in the United States of America in
      > 2000 was also the RHDVa variant. Under experimental conditions, the
      > vaccine
      > produced with the original RHDV strain protects rabbits exposed to RHDVa.
      > However, if we consider that the antigenic drift that led to RHDVa
      > involves
      > an epitope that is important for protection from infection, it might be
      > better to use a vaccine produced using the RHDVa strain.
      >
      > --
      > ProMED-mail
      > <promed@...>
      >
      > [Rabbit hemorrhagic disease was first recognized in China in the
      > mid-1980s.
      > It occurs in Korea, is widespread in Australia and New Zealand, and has
      > been reported in most of Europe. The domestic rabbit and the European
      > rabbit (_Oryctolagus cuniculus_) are susceptible, and it appears as though
      > other lagomorphs are not. The disease has a high mortality rate, so it is
      > of some consequence. Although not reported previously from South America,
      > Cuba and the United States have had significant outbreaks, and the disease
      > has been eradicated from Mexico since 1992. Both the United States and
      > Mexican outbreaks had some association with infected meat imported from
      > China, so I would like to know if Uruguay imports any rabbit meat from
      > China and, if so, whether there any association with this new outbreak.
      >
      > For those interested in the history of intentional use of viral agents,
      > the
      > postings on the New Zealand outbreak are very instructive. Briefly, a
      > farmer (not the government!) in New Zealand intentionally introduced the
      > virus as a biocontrol tool after great frustration with rabbit control
      > policies. - Mod.PC]
      >
      > [see also:
      > 2004
      > ---
      > Rabbit hemorrhagic disease - New Zealand 20040805.2145
      > 2000
      > ---
      > Rabbit hemorrhagic disease virus - USA: OIE report 20000419.0571
      > 1999
      > ---
      > Viral hemorrhagic disease, rabbits - Cuba 19990326.0473
      > 1997
      > ---
      > Rabbit hem. dis. virus introduced - New Zealand (12) 19970930.2065
      > Viral hemorrhagic disease, rabbits - Cuba (02) 19970704.1435]
      >
      > ...............jw/pc/pg/sh
      >
      >
      > *##########################################################*
      > ************************************************************
      > ProMED-mail makes every effort to verify the reports that
      > are posted, but the accuracy and completeness of the
      > information, and of any statements or opinions based
      > thereon, are not guaranteed. The reader assumes all risks in
      > using information posted or archived by ProMED-mail. ISID
      > and its associated service providers shall not be held
      > responsible for errors or omissions or held liable for any
      > damages incurred as a result of use or reliance upon posted
      > or archived material.
      > ************************************************************
      > Visit ProMED-mail's web site at <http://www.promedmail.org>.
      > Send all items for posting to: promed@...
      > (NOT to an individual moderator). If you do not give your
      > full name and affiliation, it may not be posted. Send
      > commands to subscribe/unsubscribe, get archives, help,
      > etc. to: majordomo@.... For assistance from a
      > human being send mail to: owner-promed@....
      > ############################################################
      > ############################################################
      >
      >
    Your message has been successfully submitted and would be delivered to recipients shortly.