@article{fdi:010063103, title = {{B}orrelia crocidurae in {O}rnithodoros ticks from northwestern {M}orocco : a range extension in relation to climatic change ?}, author = {{S}ouidi, {Y}. and {B}oudebouch, {N}. and {E}zikouri, {S}. and {B}elghyti, {D}. and {T}rape, {J}ean-{F}ran{\c{c}}ois and {S}arih, {M}.}, editor = {}, language = {{ENG}}, abstract = {{T}ick-borne relapsing fever ({TBRF}) is caused by {B}orrelia spirochetes transmitted to humans by {A}rgasid soft ticks of the genus {O}rnithodoros. {W}e investigated the presence of {O}rnithodoros ticks in rodent burrows in nine sites of the {G}harb region of northwestern {M}orocco where we recently documented a high incidence of {TBRF} in humans. {W}e assessed the {B}orrelia infection rate by nested {PCR} and sequencing. {A}ll sites investigated were colonized by ticks of the {O}rnithodoros marocanus complex and a high proportion of burrows (38.4%) were found to be infested. {B}orrelia infections were observed in 6.8% of the ticks tested. {T}wo {B}orrelia species were identified by sequencing: {B}. hispanica and {B}. crocidurae. {T}he discovery in northwestern {M}orocco of {O}rnithodoros ticks infected by {B}. crocidurae represents a 350 km range extension of this {S}ahelo-{S}aharan spirochete in {N}orth {A}frica. {T}he spread of {B}. crocidurae may be related to the increasing aridity of northwestern {M}orocco in relation to climate change.}, keywords = {{B}orrelia hispanica ; {B}orrelia crocidurae ; {O}rnithodoros marocanus ; {O}rnithodoros sonrai ; tick-borne relapsing fever ; {M}orocco ; {MAROC}}, booktitle = {}, journal = {{J}ournal of {V}ector {E}cology}, volume = {39}, numero = {2}, pages = {316--320}, ISSN = {1081-1710}, year = {2014}, DOI = {10.1111/jvec.12106}, URL = {https://www.documentation.ird.fr/hor/fdi:010063103}, }