Identification of hard ticks (Acari: Ixodidae) and seroprevalence to Theileria parva in cattle raised in North Kivu Province, Democratic Republic of Congo.
Kalume, Moise Kasereka; Saegerman, Claude; Mbahikyavolo, Daniel Kambaleet al.
2013 • In Parasitology Research, 112 (2), p. 789-97
[en] This study aimed to identify tick species and to determine their relationship with the Theileria parva seroprevalence in cattle raised under an extensive farming system in North Kivu Province, Democratic Republic of Congo in two agro-ecological zones namely medium (1,000-1,850 m) and high (>1,850 m) altitude. Among the 3,215 ticks collected on 482 animals, from February to April 2009, Rhipicephalus appendiculatus (64.26 %), the main vector of T. parva, was the most abundant species followed by Rhipicephalus decoloratus (35.49 %) and Amblyomma variegatum (0.25 %). The mean burden of R. appendiculatus tick per infested animal appeared significantly higher at medium (6.5 +/- 0.22 ticks) than at high (0.07 +/- 0.3 ticks) altitude (P < 0.05). However, an indirect fluorescent antibody test carried out on 450 blood samples revealed a global T. parva seroprevalence of 43 % (95 % CI: 38-47) which was not significantly (P > 0.05) different between medium (48.4 %; 95 % CI: 38-49) and high (41.9 %; 95 % CI: 35-49) altitude. These relatively low seroprevalences suggest that there is a state of endemicity to T. parva infection in the study area. The presence of the tick vector on animals was associated with an increased risk of being seropositive to T. parva infection (odds ratio = 2.04; 95 % CI: 1.8-2.3; P < 0.001). The results suggest the need for a longitudinal study to investigate the seasonal dynamics of tick species and T. parva infection. The rate of tick infection should also be evaluated in order to determine the intensity of T. parva transmission to cattle.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Kalume, Moise Kasereka
Saegerman, Claude ; Université de Liège - ULiège > Département des maladies infectieuses et parasitaires (DMI) > Epidémiologie et analyse des risques appl. aux sc. vétér.
Mbahikyavolo, Daniel Kambale
Makumyaviri, Alexis M. Pondi
Marcotty, Tanguy
Madder, Maxime
Caron, Yannick ; Université de Liège - ULiège > Département des maladies infectieuses et parasitaires (DMI) > Parasitologie et pathologie des maladies parasitaires
Lempereur, Laetitia ; Université de Liège - ULiège > Département des maladies infectieuses et parasitaires (DMI) > Parasitologie et pathologie des maladies parasitaires
Losson, Bertrand ; Université de Liège - ULiège > Département des maladies infectieuses et parasitaires (DMI) > Parasitologie et pathologie des maladies parasitaires
Language :
English
Title :
Identification of hard ticks (Acari: Ixodidae) and seroprevalence to Theileria parva in cattle raised in North Kivu Province, Democratic Republic of Congo.
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