Detection of Rickettsia typhi in Rhipicephalus sanguineus s.l. and Amblyomma mixtum in South of Mexico

被引：7

作者：

Ulloa-Garcia, Armando ^{[1
]}

Dzul-Rosado, Karla ^{[2
]}

Bermudez-Castillero, Sergio E. ^{[3
]}

Lopez-Lopez, Noe ^{[4
]}

Aurelio Torres-Monzon, Jorge ^{[5
]}

机构：

[1] Univ Autonoma Chiapas, Fac Ciencias Quim, Campus 4, Tapachula, Chiapas, Mexico

[2] Univ Autonoma Yucatan, Ctr Invest Reg Dr Hideyo Noguchi, Merida, Yucatan, Mexico

[3] Inst Conmemorat Gorgas Estudios Salud, Dept Invest Entomol Med, Panama City, Panama

[4] Colegio Frontera ur, Dept Agr Soc & Ambiente, Unidad Tapachula, Tapachula, Chiapas, Mexico

[5] Inst Nacl Salud Publ, Ctr Reg Invest Salud Publ, 19 Ave Poniente & 4a Norte S-N, Tapachula 30700, Chiapas, Mexico

来源：

SALUD PUBLICA DE MEXICO | 2020年 / 62卷 / 04期

关键词：

ticks; Rickettsia typhi; Mexico; TICK-BORNE RICKETTSIOSES; MURINE TYPHUS; YUCATAN; WILDLIFE; IXODIDAE; WORLD; FLEAS;

D O I：

10.21149/10160

中图分类号：

R1 [预防医学、卫生学];

学科分类号：

1004 ; 120402 ;

摘要：

Objective. To determine the presence of Rickettsia typhi in Rhipicephalus sanguineus s.l. and Amblyomma mixtum in southern Mexico. Materials and methods. Ticks were collected in humans and domestic animals. The presence of Rickettsia was determined by PCR and sequencing. Results. 10/39 work vials amplified fragments of the gltA, htrA and ompB genes. On 7/10 from Rh. sanguineus s.l. collected from dogs and in 3/10 of A. mixtum collected from horse and human. Sequencing indicated R. typhi in Rh. sanguineus and A with 100% homology (LS992663.1) for a region of the htrA gene and 99% (LS992663.1) with the regions of the gltA and OmpB genes.The minimum infection rate (TMI) for R. typhi was 3.88. Conclusions. Rhipicephalus sanguineus s.l. and Amblyomma mixtum are naturally infected with R. typhi in Southern Mexico.

引用

页码：358 / 363

页数：6

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