Bacteriologic and histologic examination of Stephanurus dentatus parasitizing swine ureters

• Published in: The Journal of parasitology 1973-10, Vol.59 (5), p.765-769
• Main Authors: Anderson, W.R, Tromba, F.G, Thompson, D.E, Madden, P.A
• Format: Article
• Language: English
• Subjects: animal diseases; animal health; Animals; Bacillus - isolation & purification; Bacteria - isolation & purification; Bacteriological Techniques; Cyst Fluid; Cysts; Enterobacteriaceae - isolation & purification; Escherichia - isolation & purification; Genera; Kidneys; Larval development; Lesions; Microbial flora; Micrococcus - isolation & purification; Microorganisms; Microscopy, Electron, Scanning; Nematoda; Nematode Infections - microbiology; Nematode Infections - pathology; Nematode Infections - veterinary; Saccharomyces - isolation & purification; Streptococcus - isolation & purification; Swine; Swine Diseases - microbiology; Swine Diseases - pathology; Ureter - microbiology; Ureter - pathology; Worms
• ISSN: 0022-3395; 1937-2345
• DOI: 10.2307/3278401

A systematic survey of microorganisms associated with adult Stephanurus dentatus recovered from swine ureteral cysts revealed a cyst fluid flora containing 2 to 5 bacterial genera including: Escherichia, Enterobacter, Bacillus, Micrococcus, and Streptococcus. Bacteriologic examination of dissected worm organs and tissues showed these genera were distributed as follows: cuticle, excretory glands, and ovaries, Escherichia, Enterobacter, Streptococcus; intestines, Bacillus and Streptococcus. Micrococcus was recovered only from cyst fluid cultures, and a yeast Saccharomyces sp. was found only in cultures of worm intestine. Ureteral cysts and worms therefrom were sectioned and studied using light and scanning electron microscopy. Among the worms thus examined was one having a heretofore unreported cuticular lesion. Despite the extensive cyst flora, a resultant bacteriuria was not demonstrated and no consistent adverse effect on the encysted worms was evident.