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Volume 20, Number 6—June 2014
Letter

Genetic and Ecologic Variability among Anaplasma phagocytophilum Strains, Northern Italy

Ivana Baráková, Markéta Derdáková, Giovanna Carpi, Fausta Rosso, Margherita Collini, Valentina Tagliapietra, Claudio Ramponi, Heidi C. Hauffe, and Annapaola RizzoliComments to Author 
Author affiliations: Fondazione Edmund Mach, Trento, Italy (I. Baráková, Giovanna Carpi, F. Rosso, M. Collini, V. Tagliapietra, H.C. Hauffe, A. Rizzoli); Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovak Republic (I. Baráková, M. Derdáková); Institute of Parisitology SAS, Košice, Slovak Republic (M. Derdáková); Yale School of Public Health, New Haven, CT, USA (G. Carpi); Ospedale Santa Chiara, Trento (C. Ramponi)

Main Article

Table

Prevalence of Anaplasma phagocytophilum in questing and feeding Ixodes ticks from Valle dei Laghi, northern Italy*

Sample source Tick host group/no. sampled per group No. ticks per species
 No. ticks per stage (A/N/L)† No. ticks screened No. A. phagocytophilum-infected ticks (% positive I. ricinus/% positive total ticks)‡
I. ricinus I. hexagonus I. trianguliceps I. turdus
Questing ticks
821
 0
 0
 0
 155/666/0
 821
 15 (1.8/1.8)
Feeding ticks Humans/111 115 0 0 0 32/83/0 115 5 (4.3/4.3)
Dogs/17 11 19 0 0 5/23/2 30 1 (9.1/3.3)
Wild ungulates/11 49 0 0 0 16/28/3 49 7 (14.3/14.3)
Sheep/13 13 0 0 0 13/0/0 13 1 (7.7/7.7)
Wild rodents/44 38 0 11 0 4/29/16 49 3 (7.9/6.1)
Wild birds/28 26 1 0 1 0/27/1 28 3 (11.5/10.7)

*Feeding ticks were removed from humans, domestic dogs (Canis familiaris), wild ungulates (roe deer Capreolus capreolus, red deer Cervus elaphus), sheep (Ovis aries), wild rodents (yellow-necked mouse Apodemus flavicollis, harvest mouse Moscardinus avellanarius, bank vole Myodes glareolus), and wild birds (robin Erithacus rubecula, blackbird Turdus merula, thrush Turdus philomelos, great tit Parus major, nightingale Luscinia megarhynchos, and jay Garrulus glandarius).
†A, adult; N, nymph; L, larva.
‡Only I. ricinus ticks were found to be A. phagocytophilum–infected.

Main Article

Page created: May 19, 2014
Page updated: May 19, 2014
Page reviewed: May 19, 2014
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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