Distribution of Spotted Fever Group Rickettsiae in Hard Ticks (Ixodida: Ixodidae) from Panamanian Urban and Rural Environments (2007–2013)

被引:0
作者
Sergio E. Bermúdez
Angélica M. Castro
Diomedes Trejos
Gleydis G. García
Amanda Gabster
Roberto J. Miranda
Yamitzel Zaldívar
Luis E. Paternina
机构
[1] Instituto Conmemorativo Gorgas de Estudios de la Salud,Grupo BIOGEM
[2] Grupo de Estudios con Ectoparásitos,Grupo Centauro
[3] Instituto de Medicina Legal y Ciencias Forenses,Grupo de Investigaciones Biomédicas
[4] Universidad Nacional de Colombia,undefined
[5] Universidad de Antioquia,undefined
[6] Universidad de Sucre,undefined
来源
EcoHealth | 2016年 / 13卷
关键词
ixodidae; spatial distribution model; spp.; molecular surveillance; Panama;
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学科分类号
摘要
Tick-borne rickettsiosis is an important emerging disease in Panama; to date, there have been 12 confirmed cases, including eight fatalities. To evaluate the distribution of rickettsiae in Panamanian ticks, we collected questing and on-host ticks in urban and rural towns in elevations varying between 0 and 2300 m. A total of 63 sites (13 urban and 50 rural towns) were used to develop models of spatial distributions. We found the following tick species: Rhipicephalus sanguineus s.l. (present in 54 of 63 towns and cities), Amblyomma mixtum (45/63), Dermacentor nitens (40/63), A. ovale (37/63), Rhipicephalus microplus (33/63), A. oblongoguttatum (33/63), Ixodes affinis (3/63), and Ixodes boliviensis (2/63). Rhipicephalus sanguineus s.l. was present in urban and rural towns, and other species were present only in rural towns. DNA was extracted from 408 R. sanguineus s.l., 387 A. mixtum, 103 A. ovale, and 11 A. oblongoguttatum and later tested for rickettsiae genes using PCR. Rickettsia DNA was detected in ticks from 21 of 63 localities. Rickettsia rickettsii was detected in five A. mixtum (1.29%), and Candidatus “Rickettsia amblyommii” was found in 138 A. mixtum (35%), 14 R. sanguineus (3.4%), and one A. ovale (0.9%). These results suggest that much of rural Panama is suitable for the expansion of tick populations and could favor the appearance of new tick-borne rickettsiosis outbreaks.
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页码:274 / 284
页数:10
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