Conjunctivitis associated with a Mycoplasma-like organism in swine.

D. G. Rogers, M. L. Frey, A. Hogg

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A midwestern producer reported high incidence of conjunctivitis and keratoconjunctivitis in a herd of crossbred finishing swine. Complete necropsy was performed on 3 pigs with bilateral mucopurulent conjunctivitis and chemosis; other gross lesions were not seen. Mycoplasma sp was isolated from conjunctival swab specimens obtained from 1 pig; small numbers of streptococci and coagulase-negative staphylococci were isolated from conjunctival swab specimens from all 3 pigs. Neither swine influenza virus nor pseudorabies virus was isolated from conjunctival swab specimens. Histologically, the 3 pigs had chronic lymphoplasmacytic conjunctivitis with lymphofollicular hyperplasia and foci of epithelial and goblet cell hyperplasia. Ultrastructural examination of conjunctival specimens from the 3 pigs revealed large numbers of Mycoplasma-like organisms adhered to superficial conjunctival cells. Mycoplasma-like organisms also were seen in membrane-bound vacuoles in superficial conjunctival cells. Bacteria (including chlamydiae) or viruses were not seen ultrastructurally. The lymphoproliferative nature of the conjunctival lesion and the evidence of adhered and intracellular organisms suggested an etiologic role for a Mycoplasma-like organism in the disease in these pigs.

Original languageEnglish (US)
Pages (from-to)450-452
Number of pages3
JournalJournal of the American Veterinary Medical Association
Volume198
Issue number3
StatePublished - Feb 1 1991

Fingerprint

conjunctivitis
Conjunctivitis
Mycoplasma
Phytoplasma
Swine
swine
hyperplasia
Hyperplasia
keratoconjunctivitis
swine diseases
coagulase negative staphylococci
Suid herpesvirus 1
Bacterial Conjunctivitis
goblet cells
Streptococcus
Keratoconjunctivitis
Suid Herpesvirus 1
Influenza A virus
Goblet Cells
vacuoles

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Conjunctivitis associated with a Mycoplasma-like organism in swine. / Rogers, D. G.; Frey, M. L.; Hogg, A.

In: Journal of the American Veterinary Medical Association, Vol. 198, No. 3, 01.02.1991, p. 450-452.

Research output: Contribution to journalArticle

Rogers, D. G. ; Frey, M. L. ; Hogg, A. / Conjunctivitis associated with a Mycoplasma-like organism in swine. In: Journal of the American Veterinary Medical Association. 1991 ; Vol. 198, No. 3. pp. 450-452.
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