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Volume 17, Number 5—May 2011

Dispatch

Spotted Fever Group Rickettsiae in Ticks, Germany

Cornelia SilaghiComments to Author , Dietmar Hamel, Claudia Thiel, Kurt Pfister, and Martin Pfeffer
Author affiliations: Author affiliations: Ludwig-Maximilians-Universität, Munich, Germany (C. Silaghi, D. Hamel, C. Thiel, K. Pfister); Universität Leipzig, Leipzig, Germany (M. Pfeffer)

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Table

Rickettsia spp. found in ticks from different sites, Germany, 2008–2009*

State (region) Site† No. positive/total no. (%)
Ixodes ricinus ticks
Dermacentor reticulatus ticks
D. marginatus ticks
M F Nymphs‡ M F M F
Saarland (West) A 1/6 (16.6) 0/6 ( 0) 1–3/8 (12.5–37.5) 5/14 (35.7) 7/14 (50) NA NA
B 8/26 (30.8) 6/35 (17.1) 3–7/14 (21.4–50.0) 67/128 (52.3) 71/153 (46.4) 1/8 (12.5) 1/7 (14.3)

C
2/4 (50.0)
0/2 (0)
2–7/14 (14.3–50.0)

9/35 (25.7)
8/39 (20.5)

NA
NA
Bavaria (South)
D
11/58 (19.0)
8/42 (19.0)
6/28 (21.4)

11/40 (27.5)
30/95 (31.6)

NA
NA
Saxony (East) E 5/56 (8.9) 10/45 (22.2) 0/6 (0) 144/190 (75.8) 236/309 (76.4) NA NA
F 1/4 (25.0) 1/6 (16.6) 2–10/10 (20.0–100) 17/21 (80.1) 21/29 (72.4) NA NA
G 0/2 (0) 1/6 (16.6) 1–5/13 (7.7–38.4) 30/80 (37.5) 50/111 (45.0) NA NA
H 8/53 (15.1) 4/74 (5.4) 4–11/35 (11.4–31.4) 10/16 (62.5) 33/48 (68.1) NA NA

I
7/104 (6.7)
5/81 (6.2)
1/34 (2.9)

NA
NA

NA
NA
Total A–I 43/313 (13.7) 35/297 (11.7) 20–50/162
(12.3–30.1) 293/524
(55.5) 457/798
(57.1) 1/8
(12.5) 1/7
(14.3)

*NA, not available.
†For exact location of site, see Figure.
‡In the regions Saarland and Saxony, some of the nymphs were placed in pools of up to 5 specimens; range of positive ticks indicates the possible minimum and maximum number of ticks positive for Rickettsia spp. in a pool.

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