Rickettsia parkeri strain Atlantic rainforest infecting Amblyomma ovale (Acari: Ixodidae) in the Amazon Biome (Acre state, Brazil)

2022 ◽  
Vol 13 (1) ◽  
pp. 101836
Author(s):  
André de Abreu Rangel Aguirre ◽  
Ivaneide Nunes da Costa ◽  
Paula Frassinetti Medeiros de Paulo ◽  
Marcos Valério Garcia ◽  
Jansen Fernandes Medeiros
Keyword(s):  
Atlantic Rainforest ◽  
Rickettsia Parkeri ◽  
Amblyomma Ovale

scholarly journals Whole-Genome Sequence of Rickettsia parkeri Strain Atlantic Rainforest, Isolated from a Colombian Tick

2019 ◽  
Vol 8 (39) ◽  
Author(s):  
Andrés F. Londoño ◽  
Nicole L. Mendell ◽  
Gustavo A. Valbuena ◽  
Andrew L. Routh ◽  
Thomas G. Wood ◽  
...  
Keyword(s):  
Genome Sequence ◽  
Complete Genome Sequence ◽  
Complete Genome ◽  
Atlantic Rainforest ◽  
Whole Genome Sequence ◽  
Whole Genome ◽  
Rickettsia Parkeri ◽  
Content Type ◽  
Amblyomma Ovale

Rickettsia parkeri is classified as a member of the alphaproteobacterial microorganisms, genus Rickettsia. Here, we report the complete genome sequence of Rickettsia parkeri strain Atlantic Rainforest, which was isolated from an Amblyomma ovale tick collected in the municipality of Necoclí, Colombia.

Tick fauna in non-anthropogenic areas in Mato Grosso do Sul, Brazil, with the presence of the Rickettsia parkeri strain Atlantic rainforest in Amblyomma ovale

2021 ◽  
pp. 101831
Author(s):  
Marcos Valerio Garcia ◽  
Namor Pinheiro Zimmermann ◽  
Vinicius da Silva Rodrigues ◽  
Andre de Abreu Rangel Aguirre ◽  
Leandro de Oliveira Souza Higa ◽  
...  
Keyword(s):  
Atlantic Rainforest ◽  
Rickettsia Parkeri ◽  
Mato Grosso ◽  
Amblyomma Ovale ◽  
Mato Grosso Do Sul

scholarly journals A human case of spotted fever caused by Rickettsia parkeri strain Atlantic rainforest and its association to the tick Amblyomma ovale

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Anaiá da Paixão Sevá ◽  
Thiago Fernandes Martins ◽  
Sebastián Muñoz-Leal ◽  
Ana Carla Rodrigues ◽  
Adriano Pinter ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Clinical Case ◽  
Direct Evidence ◽  
Spotted Fever ◽  
Human Case ◽  
Atlantic Rainforest ◽  
Northeast Brazil ◽  
Rickettsia Parkeri ◽  
Amblyomma Ovale ◽  
First Time

Abstract Background Rickettsia parkeri strain Atlantic rainforest has emerged in Brazil during the last 10 years, with three laboratory-confirmed human cases. While these cases were epidemiologically associated with the tick Amblyomma ovale, in none of them the tick specimens that bit the patients could be identified. Results We report a clinical case of spotted fever rickettsiosis that was acquired in an Atlantic forest area in Bahia state, northeast Brazil. The case was determined to be caused by R. parkeri strain Atlantic rainforest, based on molecular analysis of the crust removed from the tick bite site (inoculation eschar) of the patients’ skin. DNA extracted from the crust yielded partial sequences of three rickettsial genes (gltA, ompA and ompB), which were 99–100% identical to R. parkeri strain Atlantic rainforest. The tick specimen that was attached to patient skin was identified as a female of A. ovale. Conclusions We report the fourth confirmed case of spotted fever rickettsiosis caused by R. parkeri strain Atlantic rainforest, providing to our knowledge for the first time, direct evidence of R. parkeri strain Atlantic rainforest transmission by A. ovale.

In vitroisolation fromAmblyomma ovale(Acari: Ixodidae) and ecological aspects of the Atlantic rainforestRickettsia, the causative agent of a novel spotted fever rickettsiosis in Brazil

Parasitology ◽  
2013 ◽  
Vol 140 (6) ◽  
pp. 719-728 ◽  
Author(s):  
M. P. J. SZABÓ ◽  
F. A. NIERI-BASTOS ◽  
M. G. SPOLIDORIO ◽  
T. F. MARTINS ◽  
A. M. BARBIERI ◽  
...  
Keyword(s):  
Index Case ◽  
Spotted Fever ◽  
Atlantic Rainforest ◽  
Southeastern Brazil ◽  
Molecular Evidence ◽  
Rickettsia Parkeri ◽  
Amblyomma Ovale ◽  
Ecological Aspects ◽  
Antibody Titres

SUMMARYRecently, a novel human rickettsiosis, namely Atlantic rainforest spotted fever, was described in Brazil. We herein report results of a survey led around the index case in an Atlantic rainforest reserve in Peruibe municipality, southeastern Brazil. ARickettsia parkeri-like agent (Rickettsiasp. Atlantic rainforest genotype) andRicketsia belliiwere isolated from adultAmblyomma ovaleticks collected from dogs. Molecular evidence of infection with strain Atlantic rainforest was obtained for 30 (12·9%) of 232A. ovaleadult ticks collected from dogs. As many as 88·6% of the 35 examined dogs had anti-Rickettsiaantibodies, with endpoint titres at their highest toR. parkeri. High correlation among antibody titres in dogs,A. ovaleinfestations, and access to rainforest was observed.Amblyomma ovalesubadults were found predominantly on a rodent species (Euryoryzomys russatus). From 17E. russatustested, 6 (35·3%) displayed anti-Rickettsiaantibodies, with endpoint titres highest toR. parkeri. It is concluded that Atlantic rainforest genotype circulates in this Atlantic rainforest area at relatively high levels. Dogs get infected when bitten byA. ovaleticks in the forest, and carry infected ticks to households. The role ofE. russatusas an amplifier host ofRickettsiatoA. ovaleticks deserves investigation.

Infection of Amblyomma ovale with Rickettsia species Atlantic rainforest in Serra do Mar, São Paulo State, Brazil

2016 ◽  
Vol 7 (6) ◽  
pp. 1265-1267 ◽  
Author(s):  
Hermes Ribeiro Luz ◽  
Douglas McIntosh ◽  
Guilherme P. Furusawa ◽  
Walter Flausino ◽  
Tatiana Rozental ◽  
...  
Keyword(s):  
Sao Paulo ◽  
Atlantic Rainforest ◽  
São Paulo ◽  
Rickettsia Species ◽  
Serra Do Mar ◽  
Paulo State ◽  
Amblyomma Ovale ◽  
São Paulo State

Experimental infection in Cavia porcellus by infected Amblyomma ovale nymphs with Rickettsia sp. (Atlantic rainforest strain)

2018 ◽  
Vol 117 (3) ◽  
pp. 713-720 ◽  
Author(s):  
Joice Magali Brustolin ◽  
Felipe da Silva Krawczak ◽  
Marta Elena Machado Alves ◽  
Maria Amélia Weiller ◽  
Camila Lopes de Souza ◽  
...  
Keyword(s):  
Experimental Infection ◽  
Atlantic Rainforest ◽  
Cavia Porcellus ◽  
Amblyomma Ovale

Ticks (Acari: Ixodidae) and lice (Phthiraptera: Trichodectidae) infesting free-living coatis (Nasua nasua Linnaeus, 1766) with sylvatic and synanthropic habits in the Atlantic rainforest of Southern Brazil

2017 ◽  
Vol 22 (6) ◽  
pp. 779 ◽  
Author(s):  
Paulo Cesar Magalhães-Matos ◽  
Marcela Figueredo Duarte Moraes ◽  
Jaqueline Rodrigues de Almeida Valim ◽  
Gustavo Nunes de Santana Castro ◽  
Priscilla Nunes dos Santos ◽  
...  
Keyword(s):  
National Park ◽  
First Record ◽  
Ixodid Ticks ◽  
Atlantic Rainforest ◽  
Lower Prevalence ◽  
Southern Brazil ◽  
Free Living ◽  
Amblyomma Ovale ◽  
Nasua Nasua

This research describes the infestation by ticks and lice in free-living coatis (Nasua nasua Linnaeus, 1766) with sylvatic and synanthropic habits living at the Iguaçu National Park (INP), state of Parana, southern Brazil. During the months of September 2014 and from March to April 2015, ticks and lice were collected from 86 free-living coatis from INP. Among the animals analyzed, 99% (85/86) were infested with ectoparasites, Amblyomma spp. larvae (n=23), nymphs of Amblyomma brasiliense (n=77), Amblyomma coelebs (n=427) and Haemaphysalis juxtakochi (n=6) being observed, as well as Amblyomma ovale adults (n=46). Lice were found in lower prevalence (13%, 11/86), nymphs (n=31) and adults (n=9) of Neotrichodectes pallidus. Summary results show feral coatis with sylvatic and synanthropic habits as competent hosts for ixodid ticks and lice, arthropods responsible for the transmission of pathogens for carnivores, others wildlife and humans. This paper presents the first record of H. juxtakochi infesting coatis in Brazil.

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