31 documents found, page 1 of 4
Persistent SARS-CoV-2 antigen presence in multiple organs of a naturally infect...
Jarrah,Samar Afif; Kmetiuk,Louise Bach; Carvalho,Otávio Valério de; Sousa,Alessandra Tammy Hayakawa Ito de; Souza,Valeria Regia Franco; Nakazato,LucianoAbstract Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of the disease coronavirus 2019 (COVID-19) in humans. SARS-CoV-2 has been identified in cats with or without clinical signs. Case presentation: We describe the pathological and molecular findings in a six-month-old asymptomatic cat with SARS-CoV-2 infection from Brazil, belonging to a human family with COV...
Serosurvey of anti-treponema pallidum (syphilis), antihepatitis C virus and ant...
Felipetto,Laís Giuliani; Teider-Junior,Pedro Irineu; Silva,Felipe Fortino Verdan da; Couto,Anahi Chechia do; Kmetiuk,Louise BachABSTRACT Homeless persons have been considered as one of the most susceptible populations to sexually transmitted infections. In Brazil, these population experienced an increase of 140% from 2012 to 2020. Accordingly, the present study aimed to assess the seroprevalence of anti-Treponema pallidum, anti-HCV, anti-HIV antibodies, and the risk factors associated with homeless persons in a daytime attendance shelte...
Terahertz Spectroscopy Applied to Diagnostics in Public Health: A Review
Almeida,Meila Bastos de; Schiavo,Letícia; Esmanhoto,Elis; Lenz,Cesar Antonio; Rocha,Jaime; Loureiro,Marcelo; Kmetiuk,Louise BachAbstract Terahertz (THz) spectroscopy is an emerging technology that is that is bringing a number of technical breakthroughs in several scientific applications. This review aimed to describe potential applications of THz spectroscopy at the biochemistry and molecules detection for food industry, environment monitoring and diagnostics, and present the importance of such technological platform in disease control ...
Serosurvey of Rickettsia spp. in cats from a Brazilian spotted fever-endemic area
Mendes,Juliana Cristina Rebonato; Kmetiuk,Louise Bach; Martins,Camila Marinelli; Canavessi,Aurea Maria Oliveira; Jimenez,Tatiana; Pellizzaro,MaysaAbstract Rickettsia spp. bacteria are responsible for tick-borne diseases worldwide, mostly maintained by rickettsial amplifiers capybaras in Brazilian endemic areas. The campus of the University of São Paulo, in southeastern Brazil, is an area endemic for Brazilian spotted fever (BSF), with high density of capybaras and Amblyomma spp., along with confirmed human cases. Besides capybaras, the university has als...
Frequency and spatial distribution of animal and object hoarder behavior in Cur...
Cunha,Graziela Ribeiro da; Martins,Camila Marinelli; Ceccon-Valente,Marília de Fátima; Silva,Liana Ludielli da; Martins,Flavia Dias; Floeter,DircianeAbstract: This study aimed to establish the frequency and spatial distribution of animal and object hoarding in Curitiba (Paraná State), the eighth most populous city in Brazil. All hoarding complaints received by the City Secretaries of Health, Environment and Social Assistance between September 2013 and April 2015 were collected (n = 226) and suspicious cases were individually investigated. A total of 113/226...
Serosurvey for Leishmania spp., Toxoplasma gondii, Trypanosoma cruzi and Neospo...
Constantino,Caroline; Pellizzaro,Maysa; Paula,Edson Ferraz Evaristo de; Vieira,Thállitha Samih Wischral Jayme; Brandão,Ana Pérola DrullaAbstract Neighborhood dogs may act as reservoirs for several zoonotic protozoan infections, particularly in urban areas, thus constituting a potential public health threat. Accordingly, the aim of the present study was to evaluate the exposure of neighborhood dogs to four protozoan pathogens in public areas with high levels of human movement in Curitiba, southern Brazil. Blood samples from 26 neighborhood dogs ...
Serosurvey of Borrelia in dogs, horses, and humans exposed to ticks in a rural ...
Nascimento,Denise Amaral Gomes; Vieira,Rafael Felipe da Costa; Vieira,Thállitha Samih Wischral Jayme; Toledo,Roberta dos Santos; Tamekuni,KatiaAbstract The aims of the present study were to serosurvey dogs, horses, and humans highly exposed to tick bites for anti-Borrelia burgdorferi s.l. antibodies, identify tick species present, and determine risk factors associated with seropositivity in a rural settlement of Paraná State, southern Brazil. Eighty-seven residents were sampled, along with their 83 dogs and 18 horses, and individual questionnaires wer...
Mycobacterium genavense infection in two species of captive snakes
Ullmann,Leila Sabrina; Dias,Ramiro das Neves; Cagnini,Didier Quevedo; Yamatogi,Ricardo Seiti; Oliveira,Jose Paes; Nemer,VivianeAbstract Background: Mycobacterium is an important zoonotic agent with companion, livestock and wildlife animals reportedly playing a role as reservoirs. Although its association with reptiles has been described, the disease cycle remains to be fully established, particularly in snakes. Accordingly, this study aimed to report the occurrence of mycobacteriosis with clinical pneumonia in one exotic python snake (...
Seroprevalence and seroincidence of Leptospira infection in dogs during a one-y...
Morikawa,Vivien Midori; Bier,Daniele; Pellizzaro,Maysa; Ullmann,Leila Sabrina; Paploski,Igor Adolfo Dexheimer; Kikuti,Mariana; Langoni,HélioINTRODUCTION: Leptospirosis is a zoonosis that affects both humans and animals. Dogs may serve as sentinels and indicators of environmental contamination as well as potential carriers for Leptospira. This study aimed to evaluate the seroprevalence and seroincidence of leptospirosis infection in dogs in an urban low-income community in southern Brazil where human leptospirosis is endemic. METHODS: A prospective ...
Occurrence of antibodies anti -Toxoplasma gondii, Neospora caninum and Leptospi...
Zimpel,Cristina Kraemer; Grazziotin,Ana Laura; Barros Filho,Ivan Roque de; Guimaraes,Ana Marcia de Sa; Santos,Leonilda Correia dos; Moraes,Wanderlei deAbstract A large number of Brazilian zoos keep many endangered species of deer, however, very few disease surveillance studies have been conducted among captive cervids. Blood samples from 32 Brazilian deer (Blastocerus dichotomus, Mazama nana and Mazama americana) kept in captivity at Bela Vista Biological Sanctuary (Foz do Iguaçu, Brazil) were investigated for 10 ruminant pathogens, with the aims of monitorin...