TABLE 1

Wolbachia infection frequency estimates for mosquitoes in the Cx. pipiens complex collectedin California during 1999 and 2000

19992000
Location N Frequency95% C.I. N Frequency95% C.I.
Anderson401.00(0.93)451.00(0.94)
Lincoln771.00(0.96)161.00(0.83)
Elk Grove500.98(0.89, 0.9995)121.00(0.78)
Stockton501.00(0.94)301.00(0.91)
Merced501.00(0.93)300.93(0.78, 0.992)
Madera501.00(0.94)301.00(0.91)
Fresno720.99(0.93, 0.9997)
Bakersfield501.00(0.94)
Hanford501.00(0.94)251.00(0.89)
Delano481.00(0.94)300.97(0.83, 0.999)
Lancaster291.00(0.90)301.00(0.91)
Chino501.00(0.94)161.00(0.83)
Orange Co.500.98(0.89, 0.9995)300.97(0.83, 0.999)
Coachella1001.00(0.971)301.00(0.91)
Total7660.996(0.99, 0.9992)3240.988(0.97, 0.997)
Total both years10900.994(0.99, 0.997)

Confidence intervals (C.I.) were calculated from the binomial distribution.