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Volume 16, Number 3—March 2010


Economic Cost Analysis of West Nile Virus Outbreak, Sacramento County, California, USA, 2005

Loren M. Barber, Jerome J. Schleier, and Robert K.D. PetersonComments to Author 
Author affiliations: Montana State University, Bozeman, Montana, USA

Main Article

Table 1

WNF diagnosis codes and cases, Sacramento County, California, 2005*

Diagnosis code Diagnosis No. hospitalized case-patients reported† Classification Cases with cost data‡ Average ALOS§ (range¶)
66.40 WNF, unspecified 0 WNF 0
66.41 WNF with encephalitis 17 Severe (WNND) 14 16 (12–36)
66.42 WNF with other neurologic manifestation 8 Severe (WNND) 2 13 (10–14)
WNF with other complications
Severe (WNND)
21 (13–29)
WNND totals or averages 27 16 15 (10–36)

*WNF, West Nile fever; ALOS, average length of stay (J. Teague and J. Morgan, pers. comm.); WNND, West Nile neuroinvasive disease.
†Cases in 2005 obtained from the Patient Discharge Data from California’s Office of Statewide Health Planning and Development (J. Teague and J. Morgan, pers. comm.).
‡Cases that included cost data from the Patient Discharge Database and incorporated into the study.
§Average length of stay, in days (J. Teague and J. Morgan, pers. comm.).
¶Not the true ALOS range, determined from data for each diagnosis code.

Main Article