Artículos Científicos

URI permanente para esta colecciónhttp://10.0.96.45:4000/handle/11056/14635

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Morphologic abnormalities in Amblyomma mixtum, Amblyomma naponense, Amblyomma cf. oblongoguttatum and Amblyomma tapirellum (Acari: Ixodidae) of Costa Rica.
(Systematic & Applied Acarology Society, 2021-02-20) Domínguez, Lillian G.; Montenegro, Víctor M.; Bermudez, Sergio Eduardo
In this work, we describe abnormalities in adults of Amblyomma mixtum, Amblyomma naponense, Amblyomma cf. oblongoguttatum and Amblyomma tapirellum of Costa Rica. General anomalies manifested as body asymmetry, nanism, and gigantism, while local anomalies occurred in the legs, festoons, anal pore and spiracle. These are the firsts mention of abnormalities in ticks from Costa Rica.
Primer reporte de Leporacarus gibbus (Acarina: Lestrophoridae) en conejos de carne (Oryctolagus cuniculus) en Costa Rica
(Universidad Nacional, Costa Rica, 2011-07) Araya, Miguel; Robles, Vanesa; Vargas, Diana; Urbina, Andrea; Calvo, Mauricio; Montenegro, Víctor M.; Calderón Hernández, Alejandra; Montenegro Hidalgo, Victor Manuel; Jiménez Rocha, Ana Eugenia; Hernández Gamboa, Jorge
Leporacarus gibbus virus es un ácaro de pelo de conejo que no penetra la piel, se ha descrito como patógeno incluso en elevadas infestaciones. El ciclo de vida es poco conocido y todos los estadios (huevo, larva, ninfa) se desarrollan sobre el conejo. Se alimenta de secreciones sebáceas y escamas epiteliales. La presencia del ácaro puede no estar asociada con la enfermedad y puede ser considerada como un ectoparásito comensal. Existe poca información sobre su prevalencia en casos de dermatitis o sobre su carácter zoonótico. Sin embargo, casos de dermatosis en humanos ha sido asociados por el contacto directo con conejos L. gibbus . El ácaro produce fuertemente alopecia, dermatitis húmeda y prurito; también puede provocar reacciones de hipersensibilidad. En conejos de vida libre se ha observado adelgazamiento de pelo en elevadas infestaciones, La presencia de puntos oscuros de tamaño diminuto en el pelaje puede ser el único signo. Dicho ácaro tiende a poblar el tercio distal del eje del pelo del área parasitada afectando principalmente dorso, ingle, flancos y abdomen ventral.
Rickettsioses in Latin America, Caribbean, Spain and Portugal
(Revista MVZ Córdoba, 2011-05-10) Labruna, Marcelo B.; Mattar V., Salim; Nava, Santiago; Bermudez, Sergio; Venzal, Jose M.; Abarca, Katia; Romero, Luis; De Sousa, Rita; Oteo, Jose; Zavala-Castro, Jorge; Dolz, Gaby
Data on genus and infectious by Rickettsia were retrospectively compiled from the critical review literature regarding all countries in Latin America, Caribbean islands, Portugal and Spain. We considered all Rickettsia records reported for human and/or animal hosts, and/or invertebrate hosts considered being the vector. In a few cases, when no direct detection of a given Rickettsia group or species was available for a given country, the serologic method was considered. A total of 13 Rickettsia species have been recorded in Latin America and the Caribbean. The species with the largest number of country confirmed records were Rickettsia felis (9 countries), R. prowazekii (7 countries), R. typhi (6 countries), R. rickettsii (6 countries), R. amblyommii (5 countries), and R. parkeri (4 countries). The rickettsial records for the Caribbean islands (West Indies) were grouped in only one geographical area. Both R. bellii, R. akari, and Candidatus ‘R. andeane’ have been recorded in only 2 countries each, whereas R. massiliae, R. rhipicephali, R.monteiroi, and R. africae have each been recorded in a single country (in this case, R. africae has been recorded in nine Caribbean Islands). For El Salvador, Honduras, and Nicaragua, no specific Rickettsia has been reported so far, but there have been serological evidence of human or/and animal infection. The following countries remain without any rickettsial records: Belize, Venezuela, Guyana, Surinam, and Paraguay. In addition, except for a few islands, many Caribbean islands remain without records. A total of 12 Rickettsia species have been reported in Spain and Portugal: R. conorii, R. helvetica, R. monacensis, R. felis, R. slovaca, R. raoultii, R. sibirica, R. aeschlimannii, R. rioja, R. massiliae, R. typhi, and R. prowazekii. Amongst these Rickettsia species reported in Spain and Portugal, only R. prowazekii, R. typhi, R. felis, and R. massiliae have also been reported in Latin America. This study summarizes the current state of art on the rickettsial distribution in Latin America, Caribbean, Spain and Portugal. The data obtained allow a better understanding on rickettsial epidemiology and distribution of vector ecology.

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