Epidemiología y diagnóstico de ehrlichiosis y bartonelosis en animales de compañía

Diez mil años han pasado desde que los seres humanos domesticaron a los primeros animales, y la relación humano-animal ha evolucionado desde un suministro de material (comida, abrigo, movilidad) a satisfacer una necesidad emocional. La mayoría de los hogares a nivel mundial tienen animales de compañía, siendo las especies más frecuentes, los gatos y los perros. Las ehrlichiosis son enfermedades transmitidas por garrapatas que afectan a humanos y animales. La ehrlichiosis monocítica canina (EMC) es causada por Ehrlichia canis y transmitida por la garrapata Rhipicephalus sanguineus sensu lato. En perros ocasiona una enfermedad multisistémica que puede cursar de forma aguda, subclínica o crónica. El potencial zoonótico de E. canis es considerado bajo. La enfermedad natural por E. canis en gatos no está completamente dilucidada. En Argentina, recién en 2013 se han reportado por primera vez casos clínicos de EMC; al día de hoy está comprobada la ocurrencia en prácticamente todo el centro-norte del país.Para acceder a la videoconferencia completa, hacer clic en "Enlace externo".Sociedad Latinoamericana de Ecología de Vectore

Determination of antibodies to Flavivirus in wild birds from Buenos Aires City

Saint Louis encephalitis virus (SLEV), West Nile virus (WNV) and Ilheus virus (ILHV) are flaviviruses maintained in nature by enzootic transmission networks between mosquitoes and birds. These viruses have been detected in South America and identified as a cause of neurological diseases in humans. There is a record of activity in monkeys and birds for ILHV in Chaco, Corrientes and Misiones; of WNV in horses and birds in the center and east of the country, while SLEV is widely distributed in Argentina and there is virological and serological evidence in birds, humans and various mammals. In order to detect viral circulation in free-living birds in the Autonomous City of Buenos Aires (CABA), seasonal sampling was carried out in the Costanera Sur Ecological Reserve.Para acceder a la videoconferencia completa, hacer clic en "Enlace externo".Sociedad Latinoamericana de Ecología de Vectore

Ticks in periurban areas from the municipalities of La Costa and General Lavalle : A preliminary study

In Argentina, spotted fever rickettsiosis caused by Rickettsia parkeri is a zoonotic disease with tick Amblyomma triste as its principal vector. The presence of this tick species restricts to areas of La Plata hydrographic basin in the province of Buenos Aires. The adult stages of A. triste can parasitize dogs and cats. The aim of this study is to detect the presence of A. triste in dogs and humans from municipalities of General Lavalle and La Costa (Buenos Aires).Para acceder a la videoconferencia completa, hacer clic en "Enlace externo".Sociedad Latinoamericana de Ecología de Vectore

Exotic tick Amblyomma varanense (Acari: Ixodidae) in imported specimens from Varanus salvator (Squamata: Varanidae) in Argentina

La importación de animales vivos, especialmente reptiles, ha contribuido al transporte e introducción de garrapatas exóticas en muchas regiones del mundo. Se describe el hallazgo de 11 especímenes (un macho, dos hembras y ocho ninfas) de Amblyomma varanense colectados de dos varanos acuáticos (Varanus salvator) importados legalmente desde Jakarta, Indonesia. Amblyomma varanense es una garrapata distribuida en las regiones zoogeográficas Oriental y de Australasia, y V. salvator se encuentra entre los principales hospedadores. Es necesario prevenir la introducción de garrapatas exóticas y microrganismos asociados, poniéndose en evidencia el riesgo que conlleva la importación de vertebrados exóticos.The importation of live animals, especially reptiles, has contributed to the transport and introduction of exotic ticks in many regions of the world. We describe the finding of 11 specimens (one male, two females and eight nymphs) of Amblyomma varanense collected from two common water monitors (Varanus salvator) legally imported from Jakarta, Indonesia. Amblyomma varanense is a tick distributed in the Eastern and Australasian zoogeographic regions, and V. salvator is among the main hosts. It is necessary to prevent the introduction of exotic ticks and associated microorganisms, highlighting the risk involved in the importation of exotic vertebrates.Fil: Cicuttin, Gabriel Leonardo. Gobierno de la Ciudad Autónoma de Buenos Aires. Ministerio de Salud. Instituto de Zoonosis Luis Pasteur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Wiemeyer, Guillermo. No especifíca;Fil: Pérez, M. A.. No especifíca;Fil: Guglielmone, Alberto Alejandro. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Santa Fe. Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Nava, Santiago. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Santa Fe. Estación Experimental Agropecuaria Rafaela; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentin

Molecular detection of Bartonella in fleas (Hexapoda, Siphonaptera) collected from wild rodents (Cricetidae, Sigmodontinae) from Argentina

Bartonella are facultative intracellular Gram-negative bacteria, transmitted mainly by hematophagous arthropods, and the rodents act as a natural reservoir. Different species of Bartonella associated with rodents have been implicated as causing human disease. Studies from Argentina are scarce and no Bartonella from fleas have been reported previously. The present study investigated the presence of Bartonella spp. in fleas associated with sigmodontine rodents in four localities of the Santa Cruz Province, Argentina. In total, 51 fleas (four species) were analysed of which 41.2% were found to be positive for the gltA gene fragment via a nested polymerase chain reaction. All positive fleas were of the species Neotyphloceras crackensis from three different localities. Eight of the 21 amplified samples were sequenced, and the presence of three different genotypes was detected with an identity of 95.5–98.8% amongst themselves. Bartonella genotypes from American rodents and rodent fleas were recovered in a monophyletic group. Similarly, most of the Peruvian and all Argentinean variants constitute a natural group sister of the American remainder. The importance of the Bartonella spp. with respect to public health is unknown, although future studies could provide evidence of the possible involvement of N. crackensis in the Bartonella transmission cycles.Centro de Estudios Parasitológicos y de VectoresConsejo Nacional de Investigaciones Científicas y Técnica

Garrapatas en áreas urbanas protegidas y barrios aledaños de la Ciudad Autónoma de Buenos Aires

Comunicación científica en formato E- PÓSTER, realizada en las III Jornadas Internacionales de Investigación, Ciencia y Universidad y las XII Jornadas de Investigación UMaza, en el Bloque de comunicaciones científicas: "MEDICINA VETERINARIA EN EL ÁMBITO PECUARIO Y SALÚD PÚBLICA", el mismo fue moderado por el DR. BOTTINI RUBÉN. Las jornadas se llevaron adelante desde 19 al 23 de octubre del 2020 en formato totalmente virtual bajo plataforma Zoom y fueron transmitidas por el canal YouTube de la UMaza y el Facebook del Área de Ciencia y Técnica UMaza (Somos Ciencia y Técnica UMaza)

Molecular detection and identification of Bartonella in the cat flea Ctenocephalides felis felis collected from companion animals in a border area in northeastern Argentina

Molecular methods were used to detect and identify Bartonella species in the cat fleas Ctenocephalides felis felis from Puerto Iguazú, a border area in northeastern Argentina. The fleas were collected from 12 household animals, 9 dogs (Canis lupus familiaris) and 3 cats (Felis silvestris catus) during July 2016. Out of 15C. f. felis analyzed for PCR, only one flea collected from a cat was positive (6.66%) in screened for Bartonella spp. based on the gltA gene. Bartonella clarridgeiae was identified in the genetic analyses, this specimen clustered monophyletically with others B. clarridgeiae isolated from different geographical origins (1.0 PP), even, all shared the same haplotype. The results obtained provide evidence of the presence of B. clarridgeiae in cat fleas from Argentina suggesting the probable presence of related flea-borne diseases in the region and the role of cat fleas in the transmission of Bartonella among mammals including humans.Centro de Estudios Parasitológicos y de Vectore

Coxiella burnetii Infection in Livestock, Pets, Wildlife, and Ticks in Latin America and the Caribbean: a Comprehensive Review of the Literature

Purpose of the Review Q fever , a bacterial zoonosis caused by Coxiella burnetii, is reported very heterogeneously in humans in Latin America. The objective of this study was to review the data on Coxiella burnetii Infection in animals in Latin America and the Caribbean. Recent Findings A comprehensive literature review was carried out in the 47 countries and territories of Latin America on various search engines and grouped into four groups: livestock, pets, wildlife, and ticks. Summary Thus, 113 studies were selected between 1950 and 2022. Among the 47 countries, only 25 (53%) had at least one publication related to C. burnetii infection in animals. The most productive country was Brazil (N = 51), followed by French Guiana (N = 21), and Colombia (N = 16). Studies in livestock from 20 countries have shown widely varying country-to-country rates of seroprevalence, ranging from 0 to 67%. Some studies from seven countries, especially French Guiana and Brazil, found antibodies and sometimes positive PCR in dogs and cats, generally in the context of investigations around human clustered cases. Knowledge remained fragmented about infection in wildlife from only five countries (Chile, Colombia, Brazil, French Guiana, and Uruguay). C. burnetii infection was identified by PCR in Chiroptera (7 species), Rodentia (6 species), Suina (2 species), Xenartha (1 species), Cingulata (1 species), and Perissodactyla (1 species). Studies on Coxiella sp. in ticks have been performed in 11 countries, mostly in Brazil, and mainly found Coxiella-like endosymbionts. Thus, data on C. burnetii infection in animals are sparse and incomplete in Latin America and the Caribbean, and more research is warranted

WSES/GAIS/WSIS/SIS-E/AAST global clinical pathways for patients with skin and soft tissue infections

Skin and soft-tissue infections (SSTIs) encompass a variety of pathological conditions that involve the skin and underlying subcutaneous tissue, fascia, or muscle, ranging from simple superficial infections to severe necrotizing infections. Together, the World Society of Emergency Surgery, the Global Alliance for Infections in Surgery, the Surgical Infection Society-Europe, The World Surgical Infection Society, and the American Association for the Surgery of Trauma have jointly completed an international multi-society document to promote global standards of care in SSTIs guiding clinicians by describing reasonable approaches to the management of SSTIs. An extensive non-systematic review was conducted using the PubMed and MEDLINE databases, limited to the English language. The resulting evidence was shared by an international task force with different clinical backgrounds.Peer reviewe

WSES/GAIS/SIS-E/WSIS/AAST global clinical pathways for patients with intra-abdominal infections

Intra-abdominal infections (IAIs) are common surgical emergencies and have been reported as major contributors to non-trauma deaths in hospitals worldwide. The cornerstones of effective treatment of IAIs include early recognition, adequate source control, appropriate antimicrobial therapy, and prompt physiologic stabilization using a critical care environment, combined with an optimal surgical approach. Together, the World Society of Emergency Surgery (WSES), the Global Alliance for Infections in Surgery (GAIS), the Surgical Infection Society-Europe (SIS-E), the World Surgical Infection Society (WSIS), and the American Association for the Surgery of Trauma (AAST) have jointly completed an international multi-society document in order to facilitate clinical management of patients with IAIs worldwide building evidence-based clinical pathways for the most common IAIs. An extensive non-systematic review was conducted using the PubMed and MEDLINE databases, limited to the English language. The resulting information was shared by an international task force from 46 countries with different clinical backgrounds. The aim of the document is to promote global standards of care in IAIs providing guidance to clinicians by describing reasonable approaches to the management of IAIs.Peer reviewe