El género Rickettsia y reportes de infección en perros de Yucatán.

Arroyo-Ramírez, Abigaíl; Lugo–Caballero, César; Bolio-González, Manuel Emilio; Rodríguez-Vivas, Róger Iván; Reyes‐Novelo, Enrique; Panti–May, Jesús Alonso; Torres–Castro, Marco

doi:10.56369/bac.4266

Cited by 4 publications

(3 citation statements)

References 14 publications

(37 reference statements)

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“…Although none of the studied rodents was parasitized by fleas or ticks (data not shown), it is known that small rodents acquire Rickettsia through their ectoparasites (ticks, fleas, and lice) infected with these bacteria (Gajda et al, 2017;Rocha et al, 2022). In the specific case of R. parkeri, the main biological vectors are hard ticks of the genus Amblyomma, which have been associated, especially in pecially, in Yucatán (Arroyo-Ramírez et al, 2022). Their importance is also reflected in the epidemiological fact that some active cases of rickettsiosis in humans have been associated with Rickettsia infection in these companion animals due to the closeness and coexistence with them, favouring the possibility of their ectoparasites passing to humans (Breitschwerdt et al, 1987).…”

Section: Discussionmentioning

confidence: 88%

“…Domestic dogs participate notably in the urban and rural transmission cycles of some Rickettsia species (Dzul‐Rosado et al, 2021; Fournier et al, 2020; Torres‐Castro et al, 2020; Torres‐Castro, Reyes‐Novelo, et al, 2022), therefore, they are one of the most studied mammal hosts in Mexico (Sánchez‐Montes et al, 2021), especially, in Yucatán (Arroyo‐Ramírez et al, 2022). Their importance is also reflected in the epidemiological fact that some active cases of rickettsiosis in humans have been associated with Rickettsia infection in these companion animals due to the closeness and coexistence with them, favouring the possibility of their ectoparasites passing to humans (Breitschwerdt et al, 1987).…”

Section: Discussionmentioning

confidence: 99%

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An unusual identification ofRickettsia parkeriin synanthropic rodents and domiciliated dogs of a rural community from Yucatán, Mexico

Arroyo‐Ramírez,

Lugo‐Caballero,

Panti‐May

et al. 2023

Zoonoses and Public Health

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Rickettsia parkeri belongs to the spotted fever group (SFG) of the Rickettsia genus. This bacterium causes mild rickettsiosis in humans and is mainly transmitted by Amblyomma ticks. Its medical importance is emerging in the Americas, including Mexico. Synanthropic rodents and domiciled dogs participate as accidental hosts in epidemiological cycles of Rickettsia of the SFG. The aim is to report the presence of R. parkeri in synanthropic rodents and domiciled dogs from a rural community of Yucatán, Mexico. Rodents were captured, and plasma samples were taken from dogs in 48 households from Ucú, Yucatán, Mexico. A spleen sample (rodents) and plasma (dogs) were used in the propagation of Rickettsia on Vero cells. These infected cells were used in the extraction of genomic DNA. Rickettsia DNA was identified using a semi‐nested PCR (snPCR); some products were sent for sequencing. The recovered sequences were analysed with bioinformatics programs, and a phylogenetic tree was built to determine the Rickettsia species. One hundred animals were sampled: 36 synanthropic rodents and 64 dogs. The snPCR evidenced the presence of Rickettsia DNA in 10 rodents (10/36, 27.8%) and 18 dogs (18/64, 28.1%), which represents a global frequency of 28% (28/100) in this study. The bioinformatics analysis yielded homology to R. parkeri and was demonstrated in the phylogenetic tree. The first evidence of the presence of R. parkeri in synanthropic rodents (Mus musculus) from Mexico is presented; likewise, the participation of domestic dogs in the transmission cycle of this bacterium with potential importance in public health is confirmed.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

An unusual identification ofRickettsia parkeriin synanthropic rodents and domiciliated dogs of a rural community from Yucatán, Mexico

Arroyo‐Ramírez,

Lugo‐Caballero,

Panti‐May

et al. 2023

Zoonoses and Public Health

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“…Por su parte, los roedores son estudiados debido a su fácil captura, su circulación en el interior o los alrededores de las viviendas, el acceso a muestras biológicas (órganos, tejidos, sangre, ectoparásitos) y por ser significativos en la epidemiológica de varias especies de Rickettsia (Torres-Castro et al, 2018;Dzul-Rosado et al, 2021). Los estudios realizados en perros domiciliados del trópico de México han reportado la infección con especies de Rickettsia con importancia para la salud pública (Arroyo-Ramírez et al, 2022). Algunas de las especies halladas en estos animales, coinciden con especies registradas en casos de rickettsiosis humana.…”

Section: Garrapata Piojounclassified

Actualización Sobre Aspectos Epidemiológicos De La Rickettsiosis en El Trópico De México

Torres-Castro,

Reyes-Novelo,

Arroyo-Ramírez

et al. 2024

Trop Subtrop Agroecosyst

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Background: Rickettsioses are diseases caused by Rickettsia bacteria, transmitted through tick or mite bites, or through contact with feces from lice or fleas. In Mexico, these diseases are a major public health concern, particularly in the tropical states where they appear to be responsible for most cases and the highest mortality rates. In the epidemiology of rickettsiosis, domiciled dogs and rodents play a significant role in maintaining of biological vectors in the vicinity of dwellings and in domestic and companion animals that people live with. It has been determined that some characteristics of households in localities with some degree of social-economic marginalization increase the risk of occurrence of Rickettsia spp. in the occupants. Objective: To present a literature review on the epidemiology of rickettsiosis, delving into studies about the characteristics of the peridomiciliary space and the most common animals that live there involved in the occurrence of rickettsiosis in localities of the Mexican tropic. Methodology: Using keywords related to the objective, a search between November 2022 and April 2023 was carried out on digital sources of information from various types of scientific references. The search results were classified according to eligibility criteria. Results: The information generated in the Mexican tropic on the epidemiology of rickettsiosis involving synanthropic and domestic animals, as well as the characteristics of the peridomiciliary space, is more extensive and numerous than in other regions of the country. Implications: The present review includes part of the epidemiological panorama of endemic rickettsiosis in the Mexican tropics, which is not necessarily attributable to other regions where environmental and socioeconomic conditions can modify the behavior of these diseases. Conclusions: It has been documented that the transmission of zoonoses such as rickettsiosis is influenced by ecological or environmental conditions and the characteristics of anthropized environments such as the peridomicile, which represent factors related to the occurrence of these diseases in the households’ occupants of localities in the Mexican tropics. Several pathogenic species of Rickettsia are found in domesticated dogs and some species of wild and synanthropic rodents, indicating their significant epidemiological role in the tropical regions of Mexico.

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Detection of Rickettsia amblyommatis and Rickettsia bellii in ticks collected from pet dogs in peri-urban and rural areas in Yucatan, Mexico

et al. 2023

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El género Rickettsia y reportes de infección en perros de Yucatán.

Abstract: .

Cited by 4 publications

References 14 publications

An unusual identification ofRickettsia parkeriin synanthropic rodents and domiciliated dogs of a rural community from Yucatán, Mexico

An unusual identification ofRickettsia parkeriin synanthropic rodents and domiciliated dogs of a rural community from Yucatán, Mexico

Actualización Sobre Aspectos Epidemiológicos De La Rickettsiosis en El Trópico De México

Detection of Rickettsia amblyommatis and Rickettsia bellii in ticks collected from pet dogs in peri-urban and rural areas in Yucatan, Mexico

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