Review
Parasitology
Luis Fernando Pita Gondim, Rodrigo Martins Soares, Gaston More, Rogerio Fernando de Jesus, Horwald Alexander Bedoya Llano
Summary: Sarcocystis parasites are obligate heteroxenous cyst-forming coccidia that infect a wide variety of animals, with species shed by South American opossums showing biological and genetic differences from those shed by North American opossums.
REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA
(2021)
Article
Veterinary Sciences
Sang-Ik Oh, Suk-Han Jung, Han-Kyoung Lee, Changyong Choe, Tai-Young Hur, Kyoung-Min So
Summary: Giardia duodenalis infection was found in 5.6% of Korean native calves, with higher prevalence in calves aged >= 1 month and experiencing watery diarrhea. The majority of positive samples belonged to assemblage E, while a few belonged to zoonotic assemblage A, emphasizing the importance of continuous surveillance of genetic mutations in G. duodenalis.
VETERINARY SCIENCES
(2021)
Article
Parasitology
Mariele De Santi, Marcos Rogerio Andre, Karin Werther, Luiz Ricardo Goncalves, Rodrigo Martins Soares, Heitor Miraglia Herrera, Filipe Martins Santos, Nayara Yoshie Sano, William Oliveira de Assis, Andreza Castro Rucco, Rosangela Zacarias Machado
Summary: High frequency of Sarcocystis falcatula-like samples and high genetic diversity have been found in South American opossums in Brazil. Sarcocystis spp. isolated from Didelphis albiventris and Didelphis aurita showed ITS-1 and cox1 results consistent with S. falcatula previously described in Brazil.
REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA
(2023)
Article
Parasitology
Laura da Silva Ney, Samira Salim Mello Gallo, Nicole Brand Ederli, Francisco Carlos Rodrigues de Oliveira
Summary: Protozoa of the genus Sarcocystis are obligate heterogenous parasites with both definitive and intermediate hosts. This study aimed to determine the main lesions that can occur in acute and chronic infections in intermediate hosts after ingesting infective sporocysts shed by opossums, using budgerigars as a model. The results showed that acute infection presented characteristic lesions in the liver and lungs, while chronic infection displayed mature cysts mainly in thigh and tongue muscles.
PARASITOLOGY RESEARCH
(2021)
Article
Agriculture, Dairy & Animal Science
Petras Prakas, Jolanta Stankeviciute, Saulius Svazas, Evelina Juozaityte-Ngugu, Dalius Butkauskas, Rasa Vaitkeviciute-Balce
Summary: Wildfowl meat infected with S. rileyi macrocysts is not suitable for human consumption. Ducks are important game birds in Europe, and S. rileyi infections cause significant economic losses. A study in Lithuania, Russia, Belarus, and Latvia found that the prevalence of macrocysts in Mallards was similar across the countries, with higher infection rates observed in November-December compared to September-October. DNA analysis confirmed S. rileyi infection in all tested birds.
Article
Parasitology
Elisa Helman, Andrea Dellarupe, Sabrina Cifuentes, Elizabeth Chang Reissig, Gaston More
Summary: It was determined that approximately half of the wild boars in Argentina were infected with Sarcocystis spp., with some individuals being co-infected with both S. suihominis and S. miescheriana. The study also found that the DNA sequence analysis of S. suihominis samples was inconclusive. This research provides valuable information on the infection rates and characteristics of Sarcocystis spp. in wild boars from South America.
PARASITOLOGY RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Luis Pineiro, Laura Villa, Paula Salmeron, Maria Dolores Macia, Luis Otero, Marti Vall-Mayans, Ana Milagro, Samuel Bernal, Ayla Manzanal, Inigo Ansa, Gustavo Cilla
Summary: This study assessed the dynamics of Chlamydia trachomatis infection transmission in Spain and its association with clinical and epidemiological variables. Genotype and sequence type distribution varied according to sex, sexual behavior, and geographical area. Sexual behavior was found to be an important factor in the transmission dynamics of C. trachomatis.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Food Science & Technology
Safa Amairia, Mariem Rouatbi, Mohamed Ridha Rjeibi, Jacinto Gomes, Mourad Rekik, Mohamed Aziz Darghouth, Mohamed Gharbi
Summary: This study revealed a high prevalence of T. gondii and Sarcocystis spp. in Merguez sausages from Tunisia, with potential significant health risks to humans if consumed undercooked. The study also showed important regional differences in the prevalence of these parasites.
Article
Veterinary Sciences
Zhao-Jun Heng, Jian-Fa Yang, Xin-Yan Xie, Cui-Rong Xu, Jun-Rong Chen, Jun Ma, Jun-Jun He, Hua-Ming Mao
Summary: This study investigated the occurrence and genetic diversity of Giardia duodenalis in Holstein cattle in Yunnan Province, China. The results showed a high infection rate in preweaned calves, with assemblage E being the predominant group. Mixed infection of assemblages A and E was also detected in three samples.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Immunology
Zhaohui Cui, Qilin Wang, Xiyao Huang, Jiayi Bai, Bingyang Zhu, Bingchen Wang, Xiaohang Guo, Meng Qi, Junqiang Li
Summary: The prevalence and genetic diversity of G. duodenalis in captive alpine musk deer were investigated in this study. The overall prevalence was 19.3% with two genetic assemblages identified. Six novel assemblage A multilocus genotypes were discovered through multilocus genotyping analysis.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2022)
Article
Veterinary Sciences
Ahmed Elfadadny, Jumpei Uchiyama, Kazuyoshi Goto, Ichiro Imanishi, Rokaia F. Ragab, Wedad M. Nageeb, Keita Iyori, Yoichi Toyoda, Toshihiro Tsukui, Kaori Ide, Keiko Kawamoto, Koji Nishifuji
Summary: The strong bond between dogs and their owners could lead to the transfer of antibiotic-resistant bacteria from dogs to humans. In Japan, there have been limited studies on the bacterium Pseudomonas aeruginosa in dogs. We assessed the antimicrobial resistance profile and genotype of P. aeruginosa isolated from the ear canal of dogs in Japan in 2020.
FRONTIERS IN VETERINARY SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
Petras Prakas, Linas Balciauskas, Evelina Juozaityte-Ngugu, Dalius Butkauskas
Summary: The study found that mustelids play an important role in transmitting Sarcocystis spp. using cattle as intermediate hosts. S. bovifelis and S. cruzi are the most prevalent species, while S. hirsuta and S. hominis have lower prevalence rates.
Article
Fisheries
Jidapa Yamkasem, Chutchai Piewbang, Somporn Techangamsuwan, Felipe Pierezan, Esteban Soto, Win Surachetpong
Summary: The results indicate that ornamental Malawi cichlid can be infected with Tilapia lake virus (TiLV), leading to severe symptoms and mortality. The infected fish show various clinical signs and histopathological changes, suggesting that ornamental African cichlids could be potential carriers for TiLV.
Article
Agriculture, Dairy & Animal Science
Fu-Rong Zhao, Ning Zhang, Wen-Yuan Miao, Ran Wu, Lin-Lin Cui, Cui-Qin Huang, Dong-Hui Zhou
Summary: This study investigated the prevalence and genotypes of G. duodenalis in pigs in Fujian Province, China. The findings revealed that the pigs in Fujian Province mainly carried the E genotype of G. duodenalis, and highlighted the potential zoonotic risk of G. duodenalis infection from pigs to humans in this area.
Article
Parasitology
Luciana Doria Ribeiro Cabral, Ana Paula Sato, Renato Silva de Sousa, Ana Paula Rossa, Adrien Wilhelm Dilger Sanches, Caroline Tomasi Bortoleto, Rosangela Locatelli Dittrich
Summary: Limited data is available about the presence of Toxoplasma gondii, Neospora spp., and Sarcocystis neurona in equine placental tissues and amniotic fluid. This study found evidence of Neospora spp. DNA in placentas and amniotic fluid of some mares, suggesting a potential transplacental transmission route for Neospora caninum infection.
VETERINARY PARASITOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Igor C. L. Acosta, Solange M. Gennari, Horwald A. B. Llano, Sebastian Munoz-Leal, Rodrigo M. Soares
Summary: Sarcocystidae is a family of apicomplexan protozoa highly prevalent in vertebrates, with definitive hosts eliminating oocysts or sporocysts that infect intermediate hosts and develop into mature tissue cysts. In 2017, DNA of a potentially new species of Sarcocystis was identified in Chilean skuas, indicating the need for further studies to understand the epidemiology and impact of the infection. Further investigations revealed that the genetic makeup of the parasite detected in skuas was closely related to species using birds as definitive hosts.
Article
Infectious Diseases
Geovanna Vioti, Mariana Dantas da Silva, Fredy Galvis-Ovallos, Maria Luana Alves, Diogo Tiago da Silva, Joao Augusto Franco Leonel, Nuno Wolfgang Balbini Pereira, Julia Cristina Benassi, Julio Cesar Pereira Spada, Carla Maia, Eunice Aparecida Bianchi Galati, Wilma Aparecida Starke-Buzetti, Tricia Maria Ferreira de Sousa Oliveira
Summary: The study demonstrates that naturally infected cats are capable of transmitting L. infantum to sand flies. Through clinical evaluation and diagnosis of 240 cats, the research examined the role of cats in the transmission of visceral leishmaniasis.
TRANSBOUNDARY AND EMERGING DISEASES
(2022)
Article
Pathology
Corrie Brown, Jian Zhang, Mary Pantin-Jackwood, Kiril Dimitrov, Helena Lage Ferreira, David Suarez
Summary: The study found that young chickens showed a strong pro-inflammatory cytokine response post-infection, while older hens had lower cytokine expression with more prolonged infiltration of T and B cells. Age difference may contribute to variations in disease severity.
VETERINARY PATHOLOGY
(2022)
Article
Virology
Maite Freitas Silva Vaslin, Alessandra Alevato Leal, Larissa Mayumi Bueno, Cintia Bittar, Gabriela Fabiano de Souza, Karine Lourenco, Gustavo Peixoto Duarte da Silva, Maria Isabel Maldonado Coelho Guedes, Jose Luiz Proenca-Modena, Joao Pessoa Araujo Junior, Helena Lage Ferreira, Flavio Guimaraes da Fonseca
Summary: The Brazilian Society of Virology has successfully organized its 32nd annual meeting, yet again in an online format due to the challenges posed by the COVID-19 pandemic. The meeting attracted a large number of attendees, particularly undergraduate, graduate, and postdoc students, who had the opportunity to hear distinguished scientists from different countries present high-quality conferences and see young scientists showcase their latest research results. Despite the difficulties of another pandemic year, the 32nd SBV annual meeting achieved its primary goal of inspiring young scientists and facilitating discussions on high-quality virology research.
Article
Ecology
Horwald A. B. Llano, Heloise Zavatieri Polato, Lara Borges Keid, Tricia Maria Ferreira de Souza Oliveira, Triciana Zwarg, Alice S. de Oliveira, Thais C. Sanches, Adriana M. Joppert, Luis F. P. Gondim, Rodrigo Martins Soares
Summary: This study represents the first extensive survey of Sarcocystidae species in wild birds in Brazil. It provides molecular evidence of natural infection of S. falcatula in 14 species, including in the order Piciformes, and demonstrates high genetic diversity of S. falcatula in intermediate hosts in South America. Additionally, this study presents evidence of at least three non-described species of Sarcocystis.
INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE
(2022)
Article
Virology
Roselene Ecco, Laura Morais Nascimento Silva, Maira dos Santos Carneiro Lacerda, Maria Vitoria dos Santos de Moraes, Leticia Batelli de Oliveira, Willian Henrique de Magalhaes Santos, Lais Santos Rizotto, Luis Henrique Gouvea Saraiva, Larissa Mayumi Bueno, Erick G. Dorlass, Edison Luiz Durigon, Fernando Rosado Spilki, Helena Lage Ferreira
Summary: This study reports a case of captive rose-ringed parakeets that died after introducing new birds without quarantine, with bronchopneumonia, airsacculitis, and detection of herpesvirus and beak and feather disease virus. It emphasizes the importance of quarantine in preventing the introduction of new diseases into captive aviaries.
ARCHIVES OF VIROLOGY
(2022)
Article
Infectious Diseases
Larissa Mayumi Bueno, Lais Santos Rizotto, Amanda de Oliveira Viana, Laura Morais Nascimento Silva, Maria Vitoria dos Santos de Moraes, Julia Cristina Benassi, Guilherme Pereira Scagion, Erick Gustavo Dorlass, Bruna Larotonda Telezynski Lopes, Irineu Noberto Cunha, Ramiro Melinski, Igor Ferreira de Alvarenga, Gabriel Lins Leitao, Roberta Costa Rodrigues, Iolanda Maria da Silva Pereira, Lilia D'ark Nunes dos Santos, Fabiane Fisch, Alana Drielle Rocha, Dagoberto Port, Gabriela Stahelin Pereira, Alessandra Greatti, Ana Caroline de Souza Barnabe, Junko Tsukamoto, Erika Hingst-Zaher, Severino Mendes de Azevedo Jr, Wallace Rodrigues Telino Jr, Joaquim Olinto Branco, Tatiana Ometto, Jansen de Araujo, Clarice Weis Arns, Helena Lage Ferreira, Edison Luiz Durigon
Summary: This study evaluated the diversity of coronaviruses in bats in the Atlantic Forest of Brazil and found co-circulation of four alphacoronavirus subgenera. Additionally, it discovered three bat species that have never been described as Bat-CoV hosts.
TRANSBOUNDARY AND EMERGING DISEASES
(2022)
Article
Infectious Diseases
Marina Maria Moraes de Seixas, Jansen de Araujo, Scott Krauss, Thomas Fabrizio, David Walker, Tatiana Ometto, Luciano Matsumiya Thomazelli, Ralph Eric Thijl Vanstreels, Renata Ferreira Hurtado, Lucas Kruger, Roberta Piuco, Maria Virginia Petry, Robert G. Webster, Richard J. Webby, Dong-Hun Lee, David Hyunjung Chung, Helena Lage Ferreira, Edison Luiz Durigon
Summary: Wild aquatic birds in Antarctic region may carry avian influenza viruses (AIVs) and have the potential of inter-species transmission.
TRANSBOUNDARY AND EMERGING DISEASES
(2022)
Article
Virology
Renan Moura Martins, Tamara Carvalho, Cintia Bittar, Daniela Muller Quevedo, Rafael Nava Miceli, Mauricio Lacerda Nogueira, Helena Lage Ferreira, Paulo Inacio Costa, Joao Pessoa Araujo, Fernando Rosado Spilki, Paula Rahal, Marilia Freitas Calmon
Summary: Wastewater-based epidemiology is an effective surveillance system for SARS-CoV-2, providing early-warning detection and showing correlations with environmental parameters. Monitoring wastewater may be a broadly applicable strategy for early detection of future COVID-19 outbreaks.
Article
Virology
Maite Freitas Silva Vaslin, Gustavo Peixoto Duarte da Silva, Alessandra Alevato Leal, Larissa Mayumi Bueno, Cintia Bittar, Gabriela Fabiano de Souza, Karine Lourenco, Maria Isabel Maldonado Coelho Guedes, Jose Luiz Proenca-Modena, Joao Pessoa Araujo Junior, Helena Lage Ferreira, Flavio Guimaraes da Fonseca
Summary: The Brazilian Society for Virology organized its annual national meeting in October 2022. After two consecutive online events, the 33rd meeting marked the return to in-person format. The meeting gathered undergraduate, graduate, and postdoc students, as well as international researchers, to discuss the latest virology research. Despite a slight decrease in attendance due to the associated costs, the meeting successfully achieved its goals of inspiring scientists and promoting high-quality research.
Article
Parasitology
Diogo Tiago da Silva, Maria Luana Alves, Julio Cesar Pereira Spada, Joao Augusto Franco Leonel, Geovanna Vioti, Julia Cristina Benassi, Valeria Maria Lara Carregaro, Maria Fernanda Alves-Martin, Wilma Aparecida Starke-Buzetti, Tricia Maria Ferreira de Sousa Oliveira
Summary: This study tested 166 cats from two animal shelters for Leishmania spp. infection using various diagnostic methods. The results showed that ELISA had a 15% positivity rate, IFAT had a 53.6% positivity rate, both PCRs had a 3.6% positivity rate, and PA had a 1.8% positivity rate. Genetic analysis confirmed the presence of Leishmania infantum. Further analysis of selected cats revealed significant abnormalities in platelet counts and protein levels associated with Leishmania spp. infection. These findings suggest that cats exhibiting clinical signs and hematological/biochemical changes should be tested for Leishmania spp. infection in endemic areas.
REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA
(2023)
Article
Medicine, Research & Experimental
Cecilia Artico Banho, Livia Sacchetto, Guilherme Rodrigues Fernandes Campos, Cintia Bittar, Fabio Sossai Possebon, Leila Sabrina Ullmann, Beatriz de Carvalho Marques, Gislaine Ceslestino Dutra da Silva, Marilia Mazzi Moraes, Maisa Carla Pereira Parra, Andreia Francesli Negri, Ana Carolina Boldrin, Michela Dias Barcelos, Thayza M. I. L. dos Santos, Bruno H. G. A. Milhim, Leonardo Cecilio Rocha, Fernanda Simoes Dourado, Andresa Lopes dos Santos, Victoria Bernardi Ciconi, Caio Patuto, Alice Freitas Versiani, Rafael Alves da Silva, Edoardo Estevam de Oliveira Lobl, Victor Miranda Hernandes, Nathalia Zini, Carolina Colombelli Pacca, Cassia Fernanda Estofolete, Helena Lage Ferreira, Paula Rahal, Joao Pessoa Araujo Jr, Jamie A. Cohen, Cliff C. Kerr, Benjamin M. Althouse, Nikos Vasilakis, Mauricio Lacerda Nogueira
Summary: The emergence of the Brazilian Gamma variant has impacted the epidemiological profile of COVID-19 cases, with higher transmissibility and immune evasion ability. The study showed that the Gamma variant rapidly increased in prevalence two months after its first detection in Sao Paulo, Brazil, and displaced seven circulating variants. Additionally, it was associated with increased mortality risk and severity of COVID-19 cases in younger age groups.
COMMUNICATIONS MEDICINE
(2022)
Article
Veterinary Sciences
Willian H. M. Santos, Leticia B. de Oliveira, Philipe A. Leao, Izabella G. Hergot, Raphael R. Wenceslau, Christiane M. B. M. da Rocha, Helena L. Ferreira, Mauricio Resende, Nelson R. S. Martins, Stephen J. Spatz, Roselene Ecco
Summary: The effectiveness of using vectored recombinant vaccines to control infectious laryngotracheitis in chickens was evaluated under field conditions. The study found that vaccinating all chickens with at least one vaccine significantly reduced the incidence of infection and clinical cases.
PESQUISA VETERINARIA BRASILEIRA
(2022)