Fiebre recurrente transmitida por garrapatas en área rural del sur de España

Santander, Borja Croche; Carrión, A. Sánchez; Campos, Elena; Toro, Cesar; Marcos, Luz del Carmen Lara; Vargas, Juliano; Tort, T.

doi:10.1016/j.anpedi.2013.10.052

Cited by 4 publications

(1 citation statement)

References 17 publications

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“…Twenty-four years ago, the overall annual incidence of LB in Spain was estimated to be 0.25 cases per 100,000 inhabitants although the disease is especially common in the northern regions where it is considered endemic [ 8 ]. In contrast, the endemic form of the TBRF has been diagnosed in central and southern regions, presenting a lower annual incidence (0.2/100,000 inhabitants) than LB [ 9 , 10 ]. In Galicia (NW Spain), an increase of the annual incidence of LB was reported in recent years [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Molecular identification of Borrelia spirochetes in questing Ixodes ricinus from northwestern Spain

Díaz

Arnal²,

Remesar

et al. 2017

Parasites Vectors

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Background Ixodes ricinus, the predominant tick species in Europe, can transmit the causative agents of important human diseases such as Lyme borreliosis (LB), caused by Borrelia spirochetes. In northern Spain, LB is considered endemic; recently, a significant increase of the annual incidence of LB was reported in the northwestern (NW) region.MethodsIn order to provide information on the prevalence of Borrelia spp., pooled and individually free-living I. ricinus from NW Spain were molecularly analyzed. Positive samples were characterized at the fla and Glpq genes and the rrfA-rrlB intergenic spacer region to identify Borrelia species/genospecies.Results Borrelia burgdorferi (sensu lato) (s.l.) individual prevalence and MIR were significantly higher in adult females (32.3 and 16%) than in nymphs (18.8 and 6.2%) and adult males (15.6 and 8.4%). Five Borrelia genospecies belonging to the B. burgdorferi (s.l.) group were identified: B. garinii was predominant, followed by B. valaisiana, B. lusitaniae, B. afzelii and B. burgdorferi (sensu stricto) (s.s.). One species belonging to the tick-borne relapsing fever group (B. miyamotoi) was also found, showing low individual prevalence (1%), positive pool (0.7%) and MIR (0.1%) values. To our knowledge, this is the first citation of B. miyamotoi in free-living ticks from Spain.ConclusionsThe significant prevalences of B. burgdorferi (s.l.) genospecies detected in questing ticks from NW Spain are similar to those detected in northern and central European countries and higher to those previously found in Spain. These results together with the high incidence of LB in humans and the high seroprevalence of B. burgdorferi (s.l.) in roe deer shown in other studies reveal that the northwest area is one of the most risky regions for acquiring LB in Spain.Electronic supplementary materialThe online version of this article (10.1186/s13071-017-2574-x) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%