An outbreak of leptospirosis in Washington State

Kenrad Edwin Nelson, Ernest A. Ager, Mildred M. Galton, Russel W H Gillespie, Catherine R. Sulzer

Research output: Contribution to journalArticle

Abstract

The results of an investigation of an outbreak of 61 cases of leptospirosis, which occurred among teenaged children in southeastern Washington between June 20 and August 20, 1964, are described. The illnesses, in most instances, were characterized by a benign course of headache, chills, fever, myalgia, and nausea. About half the cases had a stiff neck. The outbreak was associated with the use by the involved teenagers of an irrigation canal as a "swimming hole." Approximately 200 yards upstream from the "swimming hole" a herd of cattle was pastured. This herd had direct access to the irrigation canal at this point. Nine (21%) of 43 cattle cultured were shedding leptospires in early September 1964. Organisms were also cultured from samples of water standing on the pasture in early September. Cross-agglutination and agglutination-absorption studies on the isolates from the cattle and the water revealed them to he a new serotype in the Pomona group, which has been named kennewicki. Serologic data obtained using the microscopic agglutination test, a macroscopic slide test, and the genus specific hemolytic test, are presented.

Original languageEnglish (US)
Pages (from-to)336-347
Number of pages12
JournalAmerican Journal of Epidemiology
Volume98
Issue number5
StatePublished - Nov 1973
Externally publishedYes

Fingerprint

Leptospirosis
Disease Outbreaks
Agglutination
Chills
Agglutination Tests
Water
Myalgia
Nausea
Headache
Fever
Neck

Keywords

  • Disease outbreak
  • Leptospirosis
  • Serology
  • Swimming
  • Water pollution

ASJC Scopus subject areas

  • Geriatrics and Gerontology
  • Epidemiology

Cite this

Nelson, K. E., Ager, E. A., Galton, M. M., Gillespie, R. W. H., & Sulzer, C. R. (1973). An outbreak of leptospirosis in Washington State. American Journal of Epidemiology, 98(5), 336-347.

An outbreak of leptospirosis in Washington State. / Nelson, Kenrad Edwin; Ager, Ernest A.; Galton, Mildred M.; Gillespie, Russel W H; Sulzer, Catherine R.

In: American Journal of Epidemiology, Vol. 98, No. 5, 11.1973, p. 336-347.

Research output: Contribution to journalArticle

Nelson, KE, Ager, EA, Galton, MM, Gillespie, RWH & Sulzer, CR 1973, 'An outbreak of leptospirosis in Washington State', American Journal of Epidemiology, vol. 98, no. 5, pp. 336-347.
Nelson KE, Ager EA, Galton MM, Gillespie RWH, Sulzer CR. An outbreak of leptospirosis in Washington State. American Journal of Epidemiology. 1973 Nov;98(5):336-347.
Nelson, Kenrad Edwin ; Ager, Ernest A. ; Galton, Mildred M. ; Gillespie, Russel W H ; Sulzer, Catherine R. / An outbreak of leptospirosis in Washington State. In: American Journal of Epidemiology. 1973 ; Vol. 98, No. 5. pp. 336-347.
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