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1.
Canine leproid granuloma syndrome (CLGS) has not been officially reported in New Zealand. The seminal report describing this syndrome is in the Australian Veterinary Journal, 1998, where the results of a questionnaire circulated amongst veterinary pathologists and practitioners in Australia were reported. It included one response of a case seen in New Zealand, but no details of that case were given, despite CLGS being described in the literature as “common in New Zealand”. By injudicious use of references, the international literature has propagated the idea that the condition, including molecular identification, was confirmed in New Zealand, yet none of the articles cited actually confirmed that. An outbreak of skin granulomas in a group of approximately 35 working dogs was investigated, in which skin samples were sent to the Mycobacterium reference laboratory, Victoria, Australia, for PCR testing and molecular characterisation. Results of the clinical presentation, histological features and molecular studies conformed to the published details of CLGS. In particular, the nucleotide sequence of the internal transcribed spacer region, amplified from the mycobacterial DNA present in the clinical specimen provided, was identical to GenBank® Accession Number EF611177. That sequence is representative of the causative agent of CLGS in cases from Australia, the United States of America and Brazil. Although acid-fast organisms are occasionally seen in skin granulomas in dogs in New Zealand, this is the first confirmed identification of CLGS in this country. This is also the first report of an outbreak situation amongst a group of dogs.  相似文献   

2.
Extract

Teat lesions are common in dairy cattle in New Zealand. Most of the infectious cases are caused by pseudocowpox virus, but lesions similar to those caused by bovine herpesvirus (BHV)-2 have been described clinically and confirmed serologically in New Zealand (Horner and Raynel 1988). BHV-2 and BHV-4 cause an acute viral disease in cattle known as bovine herpes mammillitis or ulcerative mammillitis (Hillerton et al 2001). Presumptive cases have been reported in New Zealand based on the nature and distribution of lesions (Daniel 1970). The disease is probably endemic in New Zealand but is poorly documented and generally considered to be mild and sporadic. The main differential diagnosis is pseudocowpox, which is often also present in herds affected with bovine herpes mammillitis, and dual infections of individual cattle have been reported (Gibbs et al 1972). To my knowledge, neither BHV-2 nor BHV-4 have yet been isolated in New Zealand.  相似文献   

3.
Extract

I am concerned with the claims about the interpretation of the clinical pathological results in a recent letter published in the New Zealand Veterinary Journal (Yeruham et al., 1998).  相似文献   

4.
Forty-four nodular and noninvasive cutaneous fungal granulomas were identified in 34 horses over a 14.5-year period. Cutaneous fungal granulomas were most common in young horses (mean age 6.1 +/- 4.2 years; range 1-19 years). There was no apparent breed or sex bias. Granulomas were either single or multiple, and most often occurred in the skin of the head and neck. The characteristic histological finding was a nodular dermal mass with a mean diameter of 7.3 mm (range 2.5-20 mm) and an intact overlying epithelium. Lesions most often exhibited intense lymphocytic inflammation, with admixed pyogranulomatous inflammation associated with a small to moderate number of fungal elements. Causative fungi were both pigmented and nonpigmented organisms of variable morphology. Penetrating plant material was identified in three cases. Granulomas caused by nonpigmented fungi were most common in horses from wet regions. Both pigmented and nonpigmented fungi were found in granulomas from horses in dry regions. Cutaneous fungal granulomas occurred in February through November, with peaks in April and July. No correlation of yearly incidence with annual average temperature or rainfall was detected. This study confirms that equine cutaneous fungal granuloma is relatively common in horses in the Pacific Northwest. Morphology of causative fungi was variable, but the signalment, history, and clinical and overall histological features were very similar. Surgical excision was curative.  相似文献   

5.
Extract

Feline infectious peritonitis was first described as a distinct disease entity in 1966 in the United States (Wolfe and Griesemer, 1966), although it had been observed prior to that date (Holzworth, 1963). The disease is widespread in that country (Disque et al., 1968: Hardy and O'Reilly, 1969; Ward and Pederson, 1969; Colby and Low, 1970; Colgrove and Parker, 1971) and has been recorded in Canada (Stephenson et al., 1971), England (Ingram, 1970), Ireland (Hartigan and Wilson, 1972), Japan (Konishi et at., 1971), the Netherlands (Mieog and Richter, 1971), Switzerland (Stunzi and Grevel, 1973) and most recently in Australia (Watson et al., 1974; Jones and Hogg, 1974). Two cases of feline infectious .peritonitis have, been seen in New Zealand (R. C. Gumbrell, pers. comm.). One experimental cat inoculated with peritoneal fluid from this case developed clinical signs and lesions said to be consistent with feline infectious peritonitis.  相似文献   

6.
Thank you for the opportunity to comment on the communication reporting Campylobacter abortions in vaccinated ewes by Fenwick et al. (New Zealand Veterinary Journal 48, 155-7, 2000).  相似文献   

7.
Extract

The review article which appeared in the Jubilee Issue of the New Zealand Veterinary Journal (Stafford et al 2002) provided a good summary of recent research into the animal suffering associated with normal farming practices and pest control. In many cases, such research has been helpful in making improvements to animal welfare regulations, and the knowledge gained may prove even more useful in making further beneficial changes during the current submission round on codes of ethical conduct.  相似文献   

8.
9.
A Short Communication was published in the October 2002 issue of the New Zealand Veterinary Journal entitled An investigation of the safety of oral calcium formate in dairy cows using clinical, biochemical and histopathological parameters (McIntyre and Weston 2002). It appeared to be comparing results directly with those of a prior communication (Scott and Van Wijk 2000). The following should be considered when comparing the two papers. Haptoglobins were propounded by McIntyre and Weston as definitive indicators of acute inflammation, yet current literature does not give consistent viewpoints as to their value. The authors cited instances where the haptoglobin concentration was measured in cases of infective disease. However, Skinner et al (1991) believed that haptoglobin concentrations increase as a result of the infection rather than the trauma. To further complicate matters Alsemgeest et al (1994) found that haptoglobin concentrations were elevated in cattle with chronic rather than acute conditions whereas Horadagoda et al (1999) believed the concentrations of acute-phase proteins were higher in acute inflammation. However, they found serum amyloid A was more reliable as an indicator of acute, rather than chronic, inflammation than was haptoglobin. Therefore, histopathology would appear to give much more conclusive evidence of mucosal inflammation than the determination of haptoglobin...  相似文献   

10.
The article which appeared in the Jubilee Issue of the New Zealand Veterinary Journal (Marshall and Manktelow 2002) reviewed one of this country's most important zoonotic diseases. I wish to add three important references concerning its first recognition in livestock and humans in New Zealand. The first field cases of leptospirosis in calves due to Leptospira pomona (now L. interrogans serovar pomona) were confirmed in November 1951 on farms in Westland, not in Northland in 1953 as stated in the review. The seminal year for leptospirosis research was 1951 not 1953. Simultaneously, the association with human disease in New Zealand was also recognized and confirmed (Bruere 1952; Kirschner et al 1952). In that year there was a mini-epidemic of cases in Westland involving both calves and humans. It was fortuitous at the time that Kirschner had established methods for the diagnosis of leptospirosis at Otago Medical School. Despite obvious clinical signs, laboratory diagnosis of leptospirosis was not confirmed at Wallaceville (New Zealand's only animal diagnostic station available to veterinarians in 1951) because of logistic impossibilities in both transport and sample preservation. From calf sera collected in Koiterangi (now renamed Kowhitirangi) in Westland in November 1951, Kirschner confirmed my diagnosis of leptospirosis ...  相似文献   

11.
Extract

We wish to record the source of Figures 1a and 2 from the report “Porcine dermatitis and nephropathy syndrome in New Zealand” published in the New Zealand Veterinary Journal 56, 94–99, 2008. These images were kindly provided by AF Julian from Gribbles Veterinary, Hamilton, New Zealand, and illustrate the gross cutaneous and renal lesions that were typical of those seen in pigs in the reported disease outbreak. The images were obtained from a pig with porcine dermatitis and nephropathy syndrome submitted by one of the authors (DEBL) from a similar outbreak of the disease that was examined by Gribbles Veterinary, Hamilton. The failure to properly acknowledge this contribution is regretted.  相似文献   

12.
A survey of the lungs from 4284 goats killed at a slaughterhouse in the North Island of New Zealand during the winter of 1990 revealed only ten cases of non-parasitic bronchopneumonia. However, 41% of the lungs had lesions consistent with infection by Muellerius capillaris, 33% with Dictyocaulus filaria, and 8% with both species. The prevalence of parasitic lesions increased with age. The carcasses of goats with mild to severe Dictyocaulus filaria lesions were from 0.81 to 1.52 kg lighter than those without the lesions (p<0.001). The carcasses of goats with more than ten nodular (Muellerius capillaris) lesions were 0.75 kg lighter than those without the lesions (p<0.001). Twelve sets of lungs had lesions of chronic bronchiectasis. Nematode larvae were seen in the bronchial lumina of three of them. The microscopic appearance varied from a moderate dilatation of occluded bronchi which retained an intact epithelium, to large foreign-body granulomas where the remaining bronchial outlines were barely discernible. Multiple, very discrete, fibrous pleural plaques were found on the caudal lobes in two cases. Plaques of this morphology have not been described previously in the veterinary literature. Pleural adhesions were found in 350 cases (8.2%). The relatively higher frequency of pleurisy versus non-parasitic pneumonia suggests that pneumonia in goats in the North Island of New Zealand completely resolves in most cases.  相似文献   

13.
Pulmonary adiaspiromycosis was diagnosed in 15 of 17 common brushtail possums (Trichosurus vulpecula) examined for bovine tuberculosis. Emmonsia crescens was isolated from two of the affected animals. This is the first reported isolation of this dimorphic fungus in New Zealand. The infections varied from light to heavy with sparsely distributed, focal, 1-2 mm diameter, grey-white spherical granulomas in the lightly infected cases to innumerable foci throughout the lungs in the heavily infected cases. Histologically, the lesions were characterised by a central fungal adiaspore consistent in morphology with E. crescens located in alveolar spaces or bronchioles. These were surrounded by a cuff of granulomatous inflammation which varied in density and extent in proportion to the degree of degeneration exhibited by the organism. The lesions in most cases of adiaspiromycosis in the possum are sufficiently distinctive to allow their differentiation from tuberculosis by gross examination, but where any doubt exists over the possibility of dual infection by Emmonsia and Mycobacterium species differentiation should be made on the basis of a histological examination of the tissue and culture for mycobacterial organisms.  相似文献   

14.
Pulmonary adiaspiromycosis was diagnosed in 15 of 17 common brushtail possums (Trichosurus vulpecula) examined for bovine tuberculosis. Emmonsia crescens was isolated from two of the affected animals. This is the first reported isolation of this dimorphic fungus in New Zealand. The infections varied from light to heavy with sparsely distributed, focal, 1–2 mm diameter, grey-white spherical granulomas in the lightly infected cases to innumerable foci throughout the lungs in the heavily infected cases. Histologically, the lesions were characterised by a central fungal adiaspore consistent in morphology with E. crescens located in alveolar spaces or bronchioles. These were surrounded by a cuff of granulomatous inflammation which varied in density and extent in proportion to the degree of degeneration exhibited by the organism.

The lesions in most cases of adiaspiromycosis in the possum are sufficiently distinctive to allow their differentiation from tuberculosis by gross examination, but where any doubt exists over the possibility of dual infection by Emmonsia and Mycobacterium species differentiation should be made on the basis of a histological examination of the tissue and culture for mycobacterial organisms.  相似文献   

15.
Encephalitozoon cuniculi (E. cuniculi) is a fungi-related, obligate, zoonotic, spore-forming intracellular eukaryotic microorganism. This emerging pathogen causes granulomas in brain and kidneys of infected individuals. The objective of this study was to detect the distribution of CD4, CD8 and MHCII-positive cells within granulomas in these organs in infected immunocompetent (group A) and infected immunosuppressed (group B) New Zealand white rabbits using immunohistochemistry. In brain, labeled CD4 immune cells were mainly located in the periphery of granulomas in group B. Kidneys of groups A and B, displayed CD4-positive in granulomas and were significant different when compared to brain. CD8 immune cells in brain and kidneys were disseminated in the granulomas in groups A and B; however, no significant difference was observed. MHCII-positive cells were more numerous in brain sections of group B and were significantly different when compared to kidney sections. Granulomas were not observed in control animals of group C and D. In conclusion, we identified CD4-positive cells in both the brain and kidneys of immunocompetent and immunosuppressed animals; CD8-positive cells were more numerous in brain of immunosuppressed rabbits and MHCII cells were more predominant in brain of immunocompetent rabbits. Apparently, the immunosuppression stimulated a change in the cellular phenotype of Th1- to Th2-like granulomas in brain and kidneys by an unknown mechanism. These results increase our understanding of CD4, CD8 and MHCII positive cells within the E. cuniculi granuloma microenvironment and will help in future microsporidian granulomas studies of both immunocompetent and immunosuppressed individuals.  相似文献   

16.
There is an error in the list of authors published for the general article by Qureshi et al. in the August issue of the New Zealand Veterinary Journal (Vol 48, 99–104, 2000) entitled, “Transmission of Mycobacterium bovis from experimentally infected ferrets to non-infected ferrets (Mustelafuro)“. The correct list of authors reads: ”T. Qureshi, R.E. Labes, M. Lambeth, J.F.T. Griffin and C.G. Mackintosh“.  相似文献   

17.
Extract

Several writers have reported on the activity of thiabendazole and the organic phosphate, 4-tert-butyl-2-chlorophenyl methyl methyl-phosphoramidate (“Montrel” (Dow), marketed in New Zealand as “Kempak” (Nicholas)) when used as anthelmintics in cattle. The literature has been summarized by Hotson (1963).  相似文献   

18.
AIMS: To compare the histology and immunohistochemistry of vaccination-site sarcomas (VSSs) with non-vaccination-site sarcomas (NVSSs) in cats in New Zealand. To determine whether VSSs in cats in New Zealand have similar histological and immunohistochemical features to those previously described in feline vaccine-associated sarcomas (VASs) in North American studies. METHODS: A retrospective survey of skin biopsies submitted between 2004 and 2006 was performed to identify cutaneous sarcomas from both vaccination and non-vaccination sites in cats. Vaccination sites included the interscapular, shoulder, or dorsal or lateral cervical and thoracic regions. All sarcomas were examined histologically, and smooth muscle actin and desmin were assessed immunohistochemically. Features previously described in VASs were assessed and compared. RESULTS: Sarcomas from 34 cats were identified, 10 of which occurred at vaccination sites. Compared with NVSSs, VSSs were more likely to be located in the hypodermis and have greater cellular pleomorphism, higher mitotic rates, more frequent peripheral lymphocytic aggregates and multinucleated giant cells. VSSs were also more likely than NVSSs to show partial myofibroblastic differentiation, demonstrable using immunohistochemistry. The histological and immunohistochemical features of VSSs in cats in New Zealand are consistent with those previously described in VASs in cats in North America. CONCLUSIONS: The results of this study suggest that VASs occur in cats in New Zealand. CLINICAL RELEVANCE: The occurrence of VASs in cats in New Zealand would provide further support for restriction of the vaccination of cats to the minimum necessary to protect health, and adoption of the New Zealand Veterinary Association guidelines on vaccination.  相似文献   

19.
Extract

Sterilization may be defined as a process that renders a patient infertile without impairing sexual urge. The interest in sterilization of bulls has grown in recent years in New Zealand, for there is an increasing need for teasers for oestrus detection in both the dairy and beef herds. The advent of the mating harness (Lang et al., 1968) has increased the usefulness of such animals. Bulls may be sterilized by vasectomy, surgery on the cauda epididymis, injection or sclerotherapeutic agents into that organ, or by operations to shorten or deviate the penis. In this article vasectomy is compared with transection of the cauda epididymis.  相似文献   

20.
This article describes the histopathology of grossly normal mesenteric lymph nodes (MLNs) of New Zealand farmed red deer (Cervus elaphus). Eighty MLNs were sourced from 10 deer from 5 North Island herds and 5 South Island herds classified as low risk and high risk of Mycobacterium avium subspecies paratuberculosis (MAP) infection, respectively. Fixed sections were stained with hematoxylin and eosin; Ziehl-Neelsen; and, selectively, periodic acid-Schiff, Perl's, and Sudan black. Positive Ziehl-Neelsen stain, follicular hyperplasia, capsular eosinophil infiltration, focal granulomas, foci of macrophages containing lipopigment, parasitic granulomas, and calcified foci are described and severity graded where appropriate. Animal age, sex, and herd of origin are variably associated with the presence of one or more features. Trabecular fibrosis and dilated edema-filled sinusoids are described. These observations allow differentiation between likely nonpathologic histologic features in deer MLNs and features possibly attributable to infection with a pathogen such as MAP.  相似文献   

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