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Volume 7, Number 4—August 2001
THEME ISSUE
West Nile Virus
West Nile Virus

Clinical Findings of West Nile Virus Infection in Hospitalized Patients, New York and New Jersey, 2000

Don Weiss*Comments to Author , Darcy Carr*, Jacqueline Kellachan*, Christina Tan†‡, Michael Phillips*‡, Eddy Bresnitz†, Marcelle Layton*, and for the West Nile Virus Outbreak Response Working Group
Author affiliations: *New York City Department of Health, New York, New York, USA; †New Jersey Department of Health and Senior Services, Trenton, New Jersey, USA; ‡Centers for Disease Control and Prevention, Atlanta, Georgia, USA 1

Main Article

Table 2

West Nile patient laboratory findings, New York and New Jersey, 1999 and 2000

Test Number tested (%) Mean value or N with condition (range) Normal values (2)
CSF
Leukocyte count, mean 19 (100) 308 mm3 (0-1782) 0-5 cells/mm3
Red cell count, mean 16 (84) 115/mm3 (0-700) 0 cells/mm3
Protein, mean 19 (100) 111 mg/dL (56-555) 15-50 mg/dL
Glucose, mean 19 (100) 67 mg/dL (48-95) 50-80 mg/dL
Differential,a >50% neutrophils 15 (79) 9 (1-100%) All mononuclear cells
Complete blood cell count
Leukocyte count, mean 19 (100) 10,600/mm3 (4,400-19,700) 4,500-11,000/mm3
Differential cell count,a >77% segs + bands 18 (95) 11 (55-96%) 59% ± 18
Hemoglobin (male), mean 11 (100) 14.5 g/dL (11.8-16.5) 15.5 g/dL ± 1.1
Hemoglobin (female), mean 8 (100) 12.7 g/dL (10.5-14.6) 13.7 g/dL ± 1.0
Other laboratory
Hyponatremia, serum Na <135 mmol/L 19(100) 8 (42%) 135-145 mmol/L
Elevated AST, >twice upper limit 17 (90) 4 (24%) 10-35 units/L
Elevated ALT, >twice upper limit 15 (79) 1 (7%) 20-48 units/L
Elevated total bilirubin, >twice upper limit 16 (84) 3 (19%) 0.3-1.0 mg/dL

aValues are the number of patients with the laboratory finding; ranges are the values of all patients.
CSF = cerebrospinal fluid; AST = aspartate aminotransferase; ALT = alanine aminotransferase; segs = segmented neutrophils.

Main Article

References
  1. Centers for Disease Control and Prevention. National West Nile Virus Surveillance System, 2000: Final Plan, May 2000, Atlanta, GA. [document online] Available from url: http://www.cdc.ncidod/dvbid/westnile/resources/WN_Final_Plan_2000_05_26_31.pdf
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  9. Marfin  AA, Bleed  DM, Lofgren  JP, Olin  AC, Savage  HM, Smith  GC, Epidemiologic aspects of a St. Louis encephalitis epidemic in Jefferson County Arkansas, 1991. Am J Trop Med Hyg. 1993;49:307.PubMed
  10. Centers for Disease Control and Prevention. Serosurveys for West Nile virus infection--New York and Connecticut Counties, 2000. MMWR Morb Mortal Wkly Rep. 2001;50:379.PubMed
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Main Article

1A. Labowitz, J.A. Greenko, B. Maldin, B. Edwin, I. Poshni, A. Fine, New York City Department of Health; R. Lanciotti, Centers for Disease Control and Prevention; F. Sorhage, C. Farello, D. Adam, B. Wolf, New Jersey Department of Health and Senior Services; A Dupius, L. Kramer, New York State Department of Health.

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The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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