Publications des scientifiques de l'IRD

Lafri I., El Hamzaoui B., Bitam I., Leulmi H., Lalout R., Mediannikov Oleg, Chergui M., Karakellah M., Raoult D., Parola P. (2017). Detection of relapsing fever Borrelia spp., Bartonella spp. and Anaplasmataceae bacteria in argasid ticks in Algeria. PLOS Neglected Tropical Diseases, 11 (11), p. e0006064 [13 p.]. ISSN 1935-2735.

Titre du document
Detection of relapsing fever Borrelia spp., Bartonella spp. and Anaplasmataceae bacteria in argasid ticks in Algeria
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000416832800036
Auteurs
Lafri I., El Hamzaoui B., Bitam I., Leulmi H., Lalout R., Mediannikov Oleg, Chergui M., Karakellah M., Raoult D., Parola P.
Source
PLOS Neglected Tropical Diseases, 2017, 11 (11), p. e0006064 [13 p.] ISSN 1935-2735
Background Argasid ticks (soft ticks) are blood-feeding arthropods that can parasitize rodents, birds, humans, livestock and companion animals. Ticks of the Ornithodoros genus are known to be vectors of relapsing fever borreliosis in humans. In Algeria, little is known about relapsing fever borreliosis and other bacterial pathogens transmitted by argasid ticks. Methodology/Principal findings Between May 2013 and October 2015, we investigated the presence of soft ticks in 20 rodent burrows, 10 yellow-legged gull (Larus michahellis) nests and animal shelters in six locations in two different bioclimatic zones in Algeria. Six species of argasid ticks were identified morphologically and through 16S rRNA gene sequencing. The presence and prevalence of Borrelia spp., Bartonella spp., Rickettsia spp. and Anaplasmataceae was assessed by qPCR template assays in each specimen. All qPCR-positive samples were confirmed by standard PCR, followed by sequencing the amplified fragments. Two Borrelia species were identified: Borrelia hispanica in Ornithodoros occidentalis in Mostaganem, and Borrelia cf. turicatae in Carios capensis in Algiers. One new Bartonella genotype and one new Anaplasmataceae genotype were also identified in Argas persicus. Conclusions The present study highlights the presence of relapsing fever borreliosis agents, although this disease is rarely diagnosed in Algeria. Other bacteria of unknown pathogenicity detected in argasid ticks which may bite humans deserve further investigation.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052]
Description Géographique
ALGERIE
Localisation
Fonds IRD [F B010071426]
Identifiant IRD
fdi:010071426
Contact