Document Detail


Observations on the lungworm, Pneumostrongylus calcaratus, in impala (Aepyceros melampus) from Swaziland.
MedLine Citation:
PMID:  2915405     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The lungworm, Pneumostrongylus calcaratus, was found in 85% (164 of 193) of impala (Aepyceros melampus) collected in Mlawula Nature Reserve in Swaziland. Infection was confirmed at 4.5 mo of age, and the prevalence increased to 100% at 11 mo, with a prevalence of 98% in animals greater than 1 yr of age. Pneumostrongylus calcaratus was usually found in firm, tangrey nodules along the lobar borders of the lungs, although an extensive granulomatous pneumonia with miliary caseous abscesses and calcified nodules was observed in some older animals. In the primary infection in lambs, adult parasites, larvae and eggs were observed in the alveoli and bronchioles within the nodule. There was peribronchial and perivascular mononuclear cuffing, with infiltration of mononuclear cells in the alveolar septum in the vicinity of worms. In lesions in older animals, there was local consolidation with macrophages and giant cells, and foci of parenchymal necrosis associated with degenerating eosinophils, which appeared to lead to the formation of eosinophilic granulomas. Resolving lesions caused interstitial fibrosis, with mineralized nodules. Pneumostrongylosis does not appear to pose a significant threat to the health of impala in Swaziland.
Authors:
G J Gallivan; I K Barker; R M Alves; J Culverwell; R Girdwood
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of wildlife diseases     Volume:  25     ISSN:  0090-3558     ISO Abbreviation:  J. Wildl. Dis.     Publication Date:  1989 Jan 
Date Detail:
Created Date:  1989-03-17     Completed Date:  1989-03-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0244160     Medline TA:  J Wildl Dis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  76-82     Citation Subset:  IM    
Affiliation:
Department of Biology, University of Swaziland, Private Bag Kwaluseni.
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MeSH Terms
Descriptor/Qualifier:
Age Factors
Animals
Antelopes / parasitology*
Artiodactyla / parasitology*
Leukocytes / immunology
Lung / immunology,  parasitology,  pathology
Lung Diseases, Parasitic / epidemiology,  pathology,  veterinary*
Macrophages / immunology
Male
Nematoda / isolation & purification
Nematode Infections / epidemiology,  pathology,  veterinary*
Pneumonia / parasitology,  pathology,  veterinary
Swaziland

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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