2026-04-29T20:47:11Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/268952025-12-18T13:02:09Zcom_20.500.12105_2052com_20.500.12105_2051col_20.500.12105_19609

00925njm 22002777a 4500 dc Folgueras, María author Gonzalez, Luis Miguel author Gil, Aitor author Collazos, Julio author Rodríguez-Pérez, Mercedes author Pérez-Is, Laura author Díaz-Arias, Javier author Meana, María author Revuelta, Belén author Gray, Jeremy author Montero-Clemente, Estrella author Asensi, Víctor author 2025-06-13 Lyme borreliosis (LB), caused by Borrelia burgdorferi sensu lato (s.l.) and babesiosis, caused by Babesia divergens and Babesia venatorum, are both transmitted by the ixodid tick Ixodes ricinus. Although these diseases coexist in Spain and other European regions, no studies have been carried out to assess the impact on the health of patients exposed to both causative pathogens. This retrospective study, conducted in Asturias in northwestern Spain between 2015 and 2017, analyzed the possible complications arising from exposure to these pathogens. To this end, the epidemiological, clinical and analytical features of two groups of a cohort of 120 LB patients exposed to one or two of the pathogens were compared. The cohort comprised 73 patients who had only been infected with Bo. burgdorferi s.l. (Bb group) and 47 patients who were seropositive for Ba. divergens/venatorum in addition to being infected with Bo. burgdorferi s.l. (BbBdv group). The results showed that LB patients who had also been exposed to infection with Babesia spp. (BbBdv group) had significantly more cardiorespiratory symptoms, in particular dyspnea and first- and second-degree atrioventricular (AV) blocks, compared to those who had been infected with Bo. burgdorferi s.l. alone (Bb group). No relevant differences in other symptoms, epidemiological factors or analytical tests were observed between the two groups. Folgueras, M.; González, L.M.; Gil, A.; Collazos, J.; Rodríguez-Pérez, M.; Pérez-Is, L.; Díaz-Arias, J.; Meana, M.; Revuelta, B.; Gray, J.; et al. Epidemiological, Clinical and Analytical Features in Lyme Borreliosis Patients Seropositive for Babesia divergens/venatorum. Microorganisms 2025, 13, 1383. https://doi.org/10.3390/microorganisms13061383 10.3390/microorganisms13061383 10.3390/microorganisms13061383/s1 2076-2607 Microorganisms 40572271 https://hdl.handle.net/20.500.12105/26895 Babesia divergens/venatorum Babesiosis Borrelia burgdorferi Cardiorespiratory symptoms Lyme borreliosis Myocardial damage Epidemiological, Clinical and Analytical Features in Lyme Borreliosis Patients Seropositive for Babesia divergens/venatorum