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A serological survey was conducted to ascertain, by haemagglutination inhibition testing, the presence of antibodies to canine parvovirus in 428 dogs in New South Wales, Australia. The first positive canine serum was one collected in May 1978 and the numbers of serologically positive dogs have increased markedly over the last 18 months. Twenty cats which had been vaccinated with feline panleucopenia vaccine were tested for antibody to the canine virus. None of them had a positive titre.
Vet Rec 1980 Apr 12
PMID:A serological survey of canine parvovirus infection in New South Wales, Australia. 737 83

Aleutian disease was diagnosed as the cause of posterior ataxia and paresis in domestic ferrets. Six serologically positive animals (four clinically affected and two unaffected) were investigated in detail and seven other clinically affected ferrets were also identified. The diagnostic findings included hypergammaglobulinaemia, histological lesions in the central nervous system and parvovirus-like particles in mesenteric lymph nodes. A wider serological survey of 446 animals owned by members of a ferret club revealed an incidence of 8.5 per cent seropositive animals.
Vet Rec 1993 May 08
PMID:Aleutian disease in domestic ferrets: diagnostic findings and survey results. 823 11

Canine parvovirus isolates from clinical cases of enteritis were obtained from the United Kingdom, Germany and the USA and differentiated by restriction enzyme analysis into three groups, namely CPV2, CPV2a and CPV2b. The three groups were readily identified by their HphI restriction profile. CPV2 was not prevalent in cases of canine parvovirus disease after 1986. Only two CPV2 strains (original type) were found among 110 strains isolated after 1980. In Europe the frequency of isolation of the CPV2a and CPV2b field strains was similar whereas in the USA the CPV2b strain predominated. Dogs inoculated with a vaccine strain were resistant to infection after challenge with UK isolates of CPV2a and CPV2b.
Vet Rec 1995 Jan 21
PMID:Comparison of isolates of canine parvovirus by restriction enzyme analysis, and vaccine efficacy against field strains. 772 11

Two groups of six-week-old beagle puppies were vaccinated with either high titre canine distemper virus or human measles virus, a third group remaining unvaccinated. All the puppies were subsequently challenged by the nasopharyngeal route at 10 weeks old with the virulent Snyder-Hill strain of canine distemper. Severe clinical signs were observed in 90 per cent of the unvaccinated dogs but both groups of vaccinated dogs survived the challenge. High temperatures were recorded in 20 per cent of the measles vaccinates and abdominal petechial rashes were observed in 60 per cent of them. The only clinical signs observed in the puppies vaccinated with distemper virus were transient rashes in 20 per cent of the group. The high titre canine distemper vaccine stimulated a humoral response quickly in 78 per cent of the puppies in the presence of maternally derived antibody and protected them against challenge with the virulent Snyder-Hill strain of distemper virus. The remaining dogs responded sluggishly but were still protected against challenge. The results of field surveys showed that 95 per cent of young puppies with different levels of maternally derived antibodies responded to the distemper component in a vaccine also containing canine parvovirus. No incompatibility was observed between the two components.
Vet Rec 1994 Oct 08
PMID:A comparison of canine distemper vaccine and measles vaccine for the prevention of canine distemper in young puppies. 784 22

Laboratory diagnosis of parvovirus B19 (B19) infection has been hampered by the limited availability of B19 virus. Recombinant viral proteins are now available for use as antigen in serological assays. We compared detection of anti-B19 IgM by "mu-capture assay" using viral B19 particles to a recombinant (rec.) immunoblot and a rec. enzyme-immunoassay (ELISA) using viral structural proteins as antigens expressed in E. coli. The rec. immunoblot was 94.3% sensitive and 96.4% specific for anti-B19 IgM, and the sensitivity of the rec. ELISA was 94.3% and the specificity, only 72.7%. There was an agreement between the "mu-capture assay" and the rec. immunoblot in 87.8% and the rec. ELISA in only 74.4%. For detection of anti-B19 IgG in patients with acute B19 infection, the rec. immunoblot was 94.3% and the rec. ELISA 85.7% sensitive. The rec. immunoblot is more reliable for detection of acute B19 infection than the rec. ELISA.
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PMID:A recombinant immunoblot and ELISA for detection of acute parvovirus B19 infection. 806 14

Feline parvovirus (FPV) was detected in the intestinal tract contents of 13 pedigree kittens which were fading or died suddenly by the use of a new chromatographic test strip for canine parvovirus (CPV) and FPV. The test appeared to be sensitive and specific for the detection of FPV and was a useful diagnostic aid. In three cases in which virus was grown in cell culture, the isolates were characteristic of FPV and not CPV. Cats in the households in which the kittens were reared were regularly immunised with FPV vaccines. The most likely explanation for the occurrence of FPV-associated disease was exposure of the young kittens to large doses of virus contaminating the environment.
Vet Rec 1998 Apr 04
PMID:Detection of feline parvovirus in dying pedigree kittens. 958 96

The prevalence of diseases suffered by dogs within two weeks of their acquisition from a rescue shelter in Northern Ireland was investigated. A postal questionnaire was completed by 556 people who had purchased a dog from the Ulster Society for the Prevention of Cruelty to Animals (USPCA) to provide information on the diseases suffered by their dog. The majority of the dogs (53.7 per cent) had an ailment the most common being coughing and diarrhoea. Of the respondents who returned their dog to the USPCA, 92 per cent did so because the animal was unhealthy. Stray dogs were more likely to have an ailment than unwanted dogs, specifically coughing, and/or skin problems. More puppies suffered from parvovirus, vomiting, and/or diarrhoea than did juveniles or adults. Adult dogs were more likely to have a cough than juveniles or puppies. There was no association between the sex of the dogs and their ailments.
Vet Rec 1999 Jan 09
PMID:Prevalence of disease in dogs purchased from an animal rescue shelter. 1009 31

Muscovy duck parvovirus (MDPV) has been demonstrated in tissue samples from one- to four-week-old commercially reared Muscovy ducks that were weak, unable to walk and had a high mortality rate. On postmortem examination, the thigh and leg muscles, and the myocardium were found to be pale, and there was a fibrinous exudate on the capsule of the liver, and ascites. The parvovirus was isolated in embryonated Muscovy duck eggs and visualised by negative stain electron microscopy, detected by polymerase chain reaction (PCR) directly from the tissues, and antibodies to it were detected by immunoelectron microscopy, ELISA and immunofluorescence. In addition, the PCR products obtained that represented 1625 bp (74 per cent) of the capsid vP1 gene, including a hypervariable region between Derzsy's disease virus or goose parvovirus and MDPV, were sequenced and shown to be 100 per cent homologous with the MDPV 89384 reference strain, but only 82.3 per cent homologous with Derzsy's disease virus.
Vet Rec 2000 Jan 15
PMID:Evidence of Muscovy duck parvovirus in Muscovy ducklings in California. 1067 93

The aim of this work was to characterise the lesions and agents present in clinically normal and clinically affected pigs on a farm during an outbreak of postweaning multisystemic wasting syndrome (PMWS), and to evaluate the diagnostic techniques for detecting porcine circovirus type 2 (PCV-2) and other microorganisms. Four pigs in the early stage and 11 pigs in the late stage of the disease, and eight clinically normal pigs were necropsied. Samples of lymphoid tissue and serum were also obtained from 12 slaughter pigs from the same farm. The tissues were examined histopathologically, and in situ hybridisation, serology and PCR were used to detect porcine circovirus type 1 (PCV-1) and/or PCV-2 in tissues and/or sera. The presence of porcine reproductive and respiratory syndrome virus (PRRSV), Aujeszky's disease virus (ADV) and porcine parvovirus (PPV) were also investigated. Characteristic microscopical lesions of PMWS were observed in the lymphoid tissues of the pigs in all three necropsied groups; the lesions were most common and severe in the pigs in the early stage of the disease, less so in the pigs in the late stage of the disease, and least in the clinically normal pigs. PCV-2 infection was detected in all the necropsied pigs by in situ hybridisation and PCR. Only three pigs had the PCV-1 genome in serum or lymph node tissue. In contrast, the slaughter pigs had no microscopical lesions and no PCV-2 nucleic acid in their serum or tissues, and only one of them had the pCV-1 genome in its serum. Immunohistochemical, serological and PCR studies revealed that PRRSV and ADV were also present on the farm during the outbreak.
Vet Rec 2001 Sep 22
PMID:Clinical and pathological observations on pigs with postweaning multisystemic wasting syndrome. 1159 82

One kidney was taken from each of 100 pigs at slaughter; 50 had gross lesions of multifocal interstitial nephritis and 50 had no gross lesions. Forty-nine of the affected kidneys had lesions that were characterised by the presence of either a few randomly distributed or numerous widely disseminated pale foci, 1 to 3 mm in diameter, on the cortical surface (white-dotted kidneys). Microscopically, these focal inflammatory lesions often had a distinct lymphofollicular pattern (follicular nephritis). Lesions of chronic vasculitis were observed in 21 of the affected kidneys. Histologically, the control kidneys had only small and sparse inflammatory foci. Standard bacterial cultures of kidneys of both groups were not significant, and cultures for the isolation of leptospires were all negative. Virological examination of the kidney homogenates by PCR did not reveal any porcine reproductive and respiratory syndrome virus and only a few cases were positive for the porcine circovirus type 1. However, porcine parvovirus (PPV) and porcine circovirus type 2 (PCV-2) were detected in many kidneys of both groups but in a significantly higher proportion of the kidneys with interstitial nephritis. There was a significant association between the lesions and the presence of PPV and PCV-2 with odds ratios of 7.5 (P<0.0001) and 3.4 (P=0.0074), respectively, and the odds ratio increased to 22.7 (P<0.0001) when both viruses were identified in the same kidney. However, a subsample of kidneys taken from both groups were negative by immunohistochemistry for the presence of PPV and PCV-2 antigens.
Vet Rec 2002 Feb 02
PMID:Infectious agents identified in pigs with multifocal interstitial nephritis at slaughter. 1188 18


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