| high prevalence of "candidatus rickettsia amblyommii" in amblyomma ticks from a spotted fever endemic region in north argentina. | ticks from an endemic spotted fever region in argentina were analysed by pcr for spotted fever group rickettsiae. dna of "candidatus rickettsia amblyommii" was found in 21.3% of amblyomma hadanii and in 44.0% of a. neumanni. amblyomma sculptum (formerly a. cajennense) and haemaphysalis juxtakochi were negative for rickettsial dna. dna of rickettsia rickettsii, the etiological agent of the clinical cases reported within the studied region was not detected in the analysed sample. | 2016 | 27260814 |
| amblyomma hadanii n. sp. (acari: ixodidae), a tick from northwestern argentina previously confused with amblyomma coelebs neumann, 1899. | all stages of amblyomma hadanii n. sp. (acari: ixodidae) are described from northwestern argentina. the diagnostic characters for males are a combination of the pattern of scutal ornamentation, basis capituli dorsally rectangular with cornua, coxa i with two subequal spurs (the internal wider, the external longer), coxae ii-iii with a single spur, coxa iv with a single spur not reaching level of anus, ventral plates irregular in shape (larger and sometimes with a small incision on festoons 4, 5 ... | 2014 | 24935128 |
| ticks infesting cattle and humans in the yungas biogeographic province of argentina, with notes on the presence of tick-borne bacteria. | this study was performed to determine the tick species that infest cattle and humans throughout an altitudinal gradient in the yungas biogeographic province of argentina. the presence of tick-borne bacteria of the genera rickettsia, ehrlichia and borrelia in the collected ticks was also evaluated. samples of ticks parasitizing cattle and humans were carried out in different seasons. questing ticks (adults and nymphs) were collected from vegetation and analyzed to detect the presence of rickettsi ... | 2018 | 29380169 |