Correction vol. 9, No. 11.

In "Genetic Variation among Temporally and Geographically Distinct West Nile Virus Isolates, United States, 2001, 2002," by C. Todd Davis, et al., errors occurred in Tables 1 and 2. The correct title for Table 1 is "Nucleotide mutations in sequences of the prM gene of 22 West Nile virus isolates obtained during 2001 and 2002 compared to WN-NY99." In Table 1, line 6, Nueces Co., Tx-1, under "prM 491" should read "G (Arg)"; line 19, Galveston Co, TX-2, under "prM 679" should read "A (Thr)." The correct title for Table 2 is "Nucleotide mutations in sequences of the E gene of 22 West Nile virus isolates obtained during 2001 and 2001 compared to WN-NY99." In Table 2, line 3, Harris Co., TX, under "Envelope 2,392," should read "A (Thr)"; line 8, Nucces Co., TX-2, under "Envelope 1,118," should read "U (Val)"; line 12, Randall Co., TX, under "1,192" should read "C (Asn)"; line 24, Galveston Co., TX-3, under "Envelope 1,192" should read "G (Ala)." Corrected versions of Tables 1 and 2 are available at: URL: http://www.cdc.gov/ncidod/EID/ vol9no11/03-0301.htm

We regret any confusion these errors may have caused.