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Chagoya-Fuentes JL, Gaona-López J, Hernández-Carbajal GR, Torres-Guerrero H, Lammoglia-Villagómez MA, Huerta-Peña J, Pérez-Brígido CD, Jácome-Sosa E, Nieto-Rosaliano SO, Rojas-Ronquillo R, Grostieta E, Becker I, Sánchez-Montes S. First confirmed case of equine pythiosis in Northern Veracruz, Mexico. Acta Trop 2024; 254:107195. [PMID: 38548212 DOI: 10.1016/j.actatropica.2024.107195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024]
Abstract
A clinical case of an adult horse with invasive, ulcerative, proliferative, pyogranulomatous disease of the skin (tumor) in the shoulder region is presented. The mass had a granulomatous and crater-shaped appearance, with serosanguinous discharge and the presence of fistulas with caseous material. The tumor was removed by surgery and sent to the laboratory for diagnosis. Histopathology was performed using Grocott-Gomori methenamine silver stain. The presence of necrotic material, fibrosis, infiltrated cells, and brown-colored hyphae, characteristic of members of the genus Pythium, were observed. To identify the infecting species, conventional PCRs for the amplification of the ITS-1 was carried out. Histopathological and PCR tests confirmed infection by a Pythium insidiosum strain closely associated with previous records from the US and Central America. Our report represents the first molecularly confirmed case of equine pythiosis in Mexico.
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Affiliation(s)
- Jorge Luis Chagoya-Fuentes
- Laboratorio de Diagnóstico, Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Jair Gaona-López
- Facultad de Ciencias Biológicas y Agropecuarias región Poza Rica-Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Gabriela R Hernández-Carbajal
- Laboratorio de Diagnóstico, Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico.
| | - Haydee Torres-Guerrero
- Laboratorio de Micología Básica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Miguel A Lammoglia-Villagómez
- Laboratorio de Diagnóstico, Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Javier Huerta-Peña
- Laboratorio de Diagnóstico, Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Carlos D Pérez-Brígido
- Facultad de Ciencias Biológicas y Agropecuarias región Poza Rica-Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Edelmira Jácome-Sosa
- Facultad de Ciencias Biológicas y Agropecuarias región Poza Rica-Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Sergio Omar Nieto-Rosaliano
- Facultad de Ciencias Biológicas y Agropecuarias región Poza Rica-Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Rebeca Rojas-Ronquillo
- Laboratorio de Diagnóstico, Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Estefania Grostieta
- Centro de Medicina Tropical, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Ingeborg Becker
- Centro de Medicina Tropical, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Sokani Sánchez-Montes
- Laboratorio de Diagnóstico, Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico; Centro de Medicina Tropical, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.
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Salceda-Sánchez B, Gasca-Zarate CM, Jiménez-Soto K, Grostieta E, López-Sánchez CG, Soto-Gutiérrez JJ, Lammoglia-Villagómez MÁ, Huerta-Peña J, Hernández-Carbajal GR, Chagoya-Fuentes JL, Jácome-Sosa E, Pérez-Brígido CD, Ballados-González GG, Becker I, Sánchez-Montes S. Molecular detection of Rickettsia felis in fleas and ticks collected from dogs and cats of Puebla, Mexico. Zoonoses Public Health 2023; 70:176-183. [PMID: 36409281 DOI: 10.1111/zph.13011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/22/2022] [Accepted: 11/07/2022] [Indexed: 11/23/2022]
Abstract
Fleas and ticks represent the two main groups of ectoparasites that infest companion animals. In particular, the flea Ctenocephalides felis felis and several members of the Rhipicephalus sanguineus complex are the main vectors of a wide range of pathogens on the American continent. They are competent vectors for several members of the genus Rickettsia, which encompass at least 15 pathogenic obligate intracellular bacteria that colonize the endothelial cells of vertebrates. In Mexico, 10 species of Rickettsia belonging to three groups have been detected in six species of ectoparasites from dogs in 9 of the 32 states of the country. However, in some larger regions of the country, active epidemiological surveillance has not been carried out. For this reason, the aim of this study was to identify the presence of members of the genus Rickettsia in fleas and ticks of dogs and cats in the state of Puebla, Mexico. A cross-sectional study was carried out to collect ectoparasites of dogs and cats during August to November 2019. Samples were fixed in 70% ethanol and examined to identify the presence of Rickettsia DNA by the amplification and sequencing of specific fragments of the gltA and ompB genes using conventional PCR. The recovered sequences were compared with those deposited in GenBank, and phylogenetic analyses were carried out to identify the position of the pathogens detected with respect to the valid species previously reported worldwide. Additionally, ecological parameters of the ectoparasite infestations were also calculated. We recovered 196 ectoparasites belonging to two species, 33 C. felis felis and 163 R. sanguineus s.l. (Rhipicephalus linnaei), parasitizing 46 hosts (42 dogs and 4 cats) in 11 localities of the state of Puebla. We detected the presence of Rickettsia felis in three pools of C. felis felis, and five from R. sanguineus s.l. Our work provides the first record of R. felis in hard ticks of Mexico and Central America, with new collection localities for this pathogen in central Mexico.
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Affiliation(s)
- Beatriz Salceda-Sánchez
- Laboratorio de Entomología, Instituto de Diagnóstico y Referencia Epidemiológicos, Secretaría de Salud, Ciudad de México, Mexico
| | - Cecilia M Gasca-Zarate
- Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Karen Jiménez-Soto
- Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Estefania Grostieta
- Centro de Medicina Tropical, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Claudia G López-Sánchez
- Laboratorio Estatal de Salud Pública del estado de Puebla, Secretaría de Salud del estado de Puebla, Puebla, Mexico
| | - Juan J Soto-Gutiérrez
- Laboratorio de Entomología, Instituto de Diagnóstico y Referencia Epidemiológicos, Secretaría de Salud, Ciudad de México, Mexico
| | - Miguel Á Lammoglia-Villagómez
- Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Javier Huerta-Peña
- Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Gabriela R Hernández-Carbajal
- Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Jorge L Chagoya-Fuentes
- Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Edelmira Jácome-Sosa
- Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Carlos D Pérez-Brígido
- Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico
| | - Gerardo G Ballados-González
- Facultad de Medicina Veterinaria y Zootecnia, Rancho Torreón del Molino, Universidad Veracruzana, Veracruz, Mexico
| | - Ingeborg Becker
- Centro de Medicina Tropical, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Sokani Sánchez-Montes
- Facultad de Ciencias Biológicas y Agropecuarias región Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico.,Centro de Medicina Tropical, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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