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Báo cáo khoa học: "Screening for several potential pathogens in feral pigeons (Columba livia) in Madrid"

Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú yđề tài: Screening for several potential pathogens in feral pigeons (Columba livia) in Madrid. | Vazquez et al. Acta VeterinariaScandinavica 2010 52 45 http www.actavetscand.eom content 52 1 45 AVS ACTAVETERINARIA Scatand n SCANDINAVICA RESEARCH Open Access Screening for several potential pathogens in feral pigeons Columba livia in Madrid Belén Vazquez 1 Fernando Esperón 1 Elena Neves1 Juan Lopez2 Carlos Ballesteros2 and María Jesus Munoz1 Abstract Background Pathogens with the zoonotic potential to infect humans such as Campylobacter jejuni Campylobacter coliand Chlamydophilapsittaci can be found in feral pigeons Columbalivia . Given the high density of these birds in the public parks and gardens of most cities they may pose a direct threat to public health. Methods A total of 118 pigeons were captured in three samplings carried out in 2006-2007 in public parks and gardens in Madrid Spain. Standard haematological and morphological analyses were carried out on the pigeons. PCR was used to screen for the presence of Campylobacter jejuni C. coli and Chlamydophila psittaci. Positive samples were confirmed by DNA sequencing. Results The analyses demonstrated a high prevalence of Chlamydophila psittaci 52.6 and Campylobacter jejuni 69.1 among the birds captured. In contrast Campylobacter coli was rarely detected 1.1 . Conclusions Pigeons in Madrid can carry Chlamydophila psittaci and Campylobacter jejuni. They may be asymptomatic or subclinical carriers of both pathogens. Background Public parks and gardens are home to abundant populations of birds. One of the most frequent species is the feral pigeon Columba livia which can be present at densities higher than 2 000 individuals per km2 as in Milan 1 or Barcelona 2 . Unfortunately no data are available about pigeon densities in many other major cities such as Madrid. Although there are few reports of disease transmission between pigeons and humans 3 their close interaction together with the observation that these birds are vectors for zoonotic agents 4 may make them a public health risk. In addition recent work .