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Volume 14, Number 10—October 2008

Dispatch

Rickettsia typhi and R. felis in Rat Fleas (Xenopsylla cheopis), Oahu, Hawaii

Marina E. EremeevaComments to Author , Wesley R. Warashina, Michele M. Sturgeon, Arlene E. Buchholz, Gregory K. Olmsted, Sarah Y. Park, Paul V. Effler, and Sandor E. Karpathy
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (M.E. Eremeeva, M.M. Sturgeon, S.E. Karpathy); Hawaii Department of Health, Honolulu, Hawaii, USA (W.R. Warashina, A.E. Buchholz, G.K. Olmsted, S.Y. Park, P.V. Effler);

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Table

Prevalence of Rickettsia felis and R. typhi in Xenopsylla cheopis fleas by PCR, Oahu, Hawaii*

Location No. (%) positive collected in 2004
No. (%) positive collected in 2006
Mice Fleas R. felis R. typhi R. felis and R. typhi Mice Fleas R. felis R. typhi R felis and R. typhi
Ewa Beach 0 0 NA NA NA 1 1 1 0 0
Hawaii Kai 1 2 0 0 0 0 0 NA NA NA
Honokai Hale 0 0 NA NA NA 12 21 2 (10) 0 0
Kapolei 0 0 NA NA NA 7 10 2 (20) 0 0
Ko Olina 0 0 NA NA NA 3 7 0 0 0
Maili 0 0 NA NA NA 7 11 1 (9) 0 0
Makaha 12 23 9 (39) 1 (4.3) 0 2 2 0 0 0
Makakilo 17 25 8 (32) 0 0 13 17 3 (18) 1 (6) 0
Nanakuli 3 4 1 (25) 1 (25) 0 6 6 1(17) 0 0
Waianae 28 68 24 (35) 1(1.5) 1 (1.5) 4 9 0 0 0
Subtotal 61 122 42 (34) 3 (3) 1 (0.8) 55 84 10(12) 1 (1.2) 0
Total† 118 210 52 (25) 4 (1.9) 1 (0.05)

*NA, not available (no samples were collected).
†Includes 2 mice and 4 fleas collected in 2007 from Nanakuli; these samples were PCR negative.

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