<i>Rickettsia africae</i>in<i>Amblyomma variegatum</i>Ticks, Uganda and Nigeria

Lorusso, Vincenzo; Gruszka, Karolina Anna; Majekodunmi, Ayodele O.; Igweh, A. C.; Welburn, Susan C.; Picozzi, Kim

doi:10.3201/eid1910.130389

Cited by 38 publications

(24 citation statements)

References 9 publications

(11 reference statements)

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“…In consistent with our observation R. africae has been detected in Am. variegatum ticks collected from cattle in several African countries including in (7/26) in Kenya (Mutai et al, 2013), in (22/39) Uganda and 22/141 Nigeria (Lorusso et al, 2013), in 4-8% in Nigeria (Reye et al, 2012), in Senegal (Mediannikov et al, 2010b), in 11/12 in Sudan (Morita et al, 2004) and in 6/6 Mali, 6/6 Niger and 1/13 Burundi . Similarly, in support of our finding R. africae was detected in A. gemma ticks collected from cattle in Kenya (Mutai et al, 2013).…”

Section: Discussionmentioning

confidence: 97%

Spotted fever group rickettsiae in ixodid ticks in Oromia, Ethiopia

Kumsa

Socolovschi

Raoult

et al. 2015

Ticks and Tick-borne Diseases

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Section: Discussionmentioning

confidence: 97%

Spotted fever group rickettsiae in ixodid ticks in Oromia, Ethiopia

Kumsa

Socolovschi

Raoult

et al. 2015

Ticks and Tick-borne Diseases

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“…The first information about R. africae in ticks in Uganda was published in 2013 by Lorusso et al ( 7 ), but previously R. conorii also was found ( 8 ). The prevalence rate of R. africae infection among Amblyomma variegatum ticks in Uganda was 97.1% ( 9 ).…”

mentioning

confidence: 99%

African Tick-Bite Fever in Traveler Returning to Slovenia from Uganda

Bogovič¹,

Lotrič‐Furlan²,

Korva³

et al. 2016

Emerg. Infect. Dis.

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“…have been detected in Africa (Parola et al, 2013). Recently, Rickettsia africae (Lorusso et al, 2013) and R. aeschlimannii (Reye et al, 2012) were reported in cattle ticks from Nigeria. To the best of our knowledge, prior to this study, R. aeschlimannii had not been detected in Hyalomma ticks collected from camels in Nigeria.…”

mentioning

confidence: 99%

Molecular detection of Rickettsia aeschlimannii in Hyalomma spp. ticks from camels (Camelus dromedarius) in Nigeria, West Africa

Kamani

Baneth

Apanaskevich

et al. 2015

Medical Vet Entomology

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Several species of the spotted fever group rickettsiae have been identified as emerging pathogens throughout the world, including in Africa. In this study, 197 Hyalomma ticks (Ixodida: Ixodidae) collected from 51 camels (Camelus dromedarius) in Kano, northern Nigeria, were screened by amplification and sequencing of the citrate synthase (gltA), outer membrane protein A (ompA) and 17-kDa antigen gene fragments. Rickettsia sp. gltA fragments were detected in 43.3% (42/97) of the tick pools tested. Rickettsial ompA gene fragments (189 bp and 630 bp) were detected in 64.3% (n = 27) and 23.8% (n = 10) of the gltA-positive tick pools by real-time and conventional polymerase chain reaction (PCR), respectively. The amplicons were 99-100% identical to Rickettsia aeschlimannii TR/Orkun-H and R. aeschlimannii strain EgyRickHimp-El-Arish in GenBank. Furthermore, 17-kDa antigen gene fragments of 214 bp and 265 bp were detected in 59.5% (n = 25) and 38.1% (n = 16), respectively, of tick pools, and sequences were identical to one another and 99-100% identical to those of the R. aeschlimannii strain Ibadan A1 in GenBank. None of the Hyalomma impressum ticks collected were positive for Rickettsia sp. DNA. Rickettsia sp. gltA fragments (133 bp) were detected in 18.8% of camel blood samples, but all samples were negative for the other genes targeted. This is the first report to describe the molecular detection of R. aeschlimannii in Hyalomma spp. ticks from camels in Nigeria.

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Rickettsia africaeinAmblyomma variegatumTicks, Uganda and Nigeria

Cited by 38 publications

References 9 publications

Spotted fever group rickettsiae in ixodid ticks in Oromia, Ethiopia

Spotted fever group rickettsiae in ixodid ticks in Oromia, Ethiopia

African Tick-Bite Fever in Traveler Returning to Slovenia from Uganda

Molecular detection of Rickettsia aeschlimannii in Hyalomma spp. ticks from camels (Camelus dromedarius) in Nigeria, West Africa

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