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A new gnotobiotic pig model of P[6] human rotavirus infection and disease for preclinical evaluation of rotavirus vaccines
(MDPI, 2022-12)Human rotavirus (HRV) is a leading cause of gastroenteritis in children under 5 years of age. Licensed vaccines containing G1P[8] and G1-4P[8] strains are less efficacious against newly emerging P[6] strains, indicating ... -
Anti-VP6 VHH : an experimental treatment for rotavirus A-associated disease
(2016)Species A Rotaviruses (RVA) remain a leading cause of mortality in children under 5 years of age. Current treatment options are limited. We assessed the efficacy of two VP6-specific llama-derived heavy chain antibody ... -
Combined live oral priming and intramuscular boosting regimen with Rotarix® and a nanoparticle-based trivalent rotavirus vaccine evaluated in gnotobiotic pig models of G4P[6] and G1P[8] human rotavirus infection
(MDPI, 2023-05)Human rotavirus (HRV) is the causative agent of severe dehydrating diarrhea in children under the age of five, resulting in up to 215,000 deaths each year. These deaths almost exclusively occur in low- and middle-income ... -
Controlling Rotavirus-associated diarrhea: Could single-domain antibody fragments make the difference? = Hacia el control de la diarrea por rotavirus A: ¿podrían los nanoanticuerpos VHH marcar la diferencia?
(Asociación Argentina de Microbiología, 2015-10)Group A Rotavirus (RVA) remains a leading cause of severe diarrhea and child mortality. The variable domain of camelid heavy chain antibodies (VHH) display potent antigen-binding capacity, have low production costs and are ... -
Detection, molecular characterization and phylogenetic analysis of G3P[12] and G14P[12] equine rotavirus strains co-circulating in central Kentucky
(Elsevier, 2018)Equine rotavirus A (ERVA) is the leading cause of diarrhea in neonatal foals and a major health problem to the equine breeding industry worldwide. The G3P[12] and G14P[12] ERVA genotypes are the most prevalent in foals ... -
Development and evaluation of a one-step multiplex real-time TaqMan® RT-qPCR assay for the detection and genotyping of equine G3 and G14 rotaviruses in fecal samples
(BMC, 2019-04)Background: Equine rotavirus A (ERVA) is the leading cause of diarrhea in neonatal foals and has a negative impact on equine breeding enterprises worldwide. Among ERVA strains infecting foals, the genotypes G3P[12] and ... -
Discovery and molecular characterization of a group A rotavirus strain detected in an Argentinean vicuña (Vicugna vicugna)
(Elsevier, 2013-01-25)The wild vicuña (Vicugna vicugna) is one of the four species of native South American camelids (SACs) in addition to the wild guanaco, and their domesticated counterparts, alpaca and llama, respectively. Serological data ... -
Double-layered rotavirus-like particles are efficient carriers to elicit strong CTL responses to delivered heterologous antigens
(Elsevier, 2014-11)The first 92 amino acids of VP2 of rotavirus are dispensable for VLP assembly and can be replaced by heterologous reporter proteins without affecting either self-assembly of chimeric VP2 or the interaction with VP6 to ... -
Equine rotavirus a under the one health lens : potential impacts on public health
(MDPI, 2024-01)Group A rotaviruses are a well-known cause of viral gastroenteritis in infants and children, as well as in many mammalian species and birds, affecting them at a young age. This group of viruses has a double-stranded, ... -
Equine rotavirus in Argentinean foals : an overview
(2016)The aim of the present work is to summarized our knowledge and discuss the future prospects regarding this important disease of foals. -
Human rotavirus replicates in salivary glands and primes immune responses in facial and intestinal lymphoid tissues of gnotobiotic pigs
(MDPI, 2023-08)Human rotavirus (HRV) is a leading cause of viral gastroenteritis in children across the globe. The virus has long been established as a pathogen of the gastrointestinal tract, targeting small intestine epithelial cells ... -
Molecular characterization of equine rotavirus group A detected in Argentinean foals during 2009–2014
(2017-12)Equine rotavirus group A (RVA) has been detected in several countries worldwide since its first detection in 1975. Currently, equine RVA is considered the major cause of dehydrating diarrhea in foals younger than 3 months, ... -
Molecular characterization of group A rotavirus strains detected in alpacas (Vicugna pacos) from Peru
(Microbiology Society, 2021-04)The alpaca is a very important social and economic resource for the production of fibre and meat for Andean communities. Peru is the main producer of alpacas. Group A rotavirus (RVA) has been sporadically detected in ... -
Molecular engineering improves antigen quality and enables integrated manufacturing of a trivalent subunit vaccine candidate for rotavirus
(BMC, 2021-05)Background: Vaccines comprising recombinant subunit proteins are well-suited to low-cost and high-volume production for global use. The design of manufacturing processes to produce subunit vaccines depends, however, on the ... -
Occurrence of Cryptosporidium and other enteropathogens and their association with diarrhea in dairy calves of Buenos Aires province, Argentina
(Elsevier, 2021-04)Cryptosporidiosis of neonatal dairy calves causes diarrhea, resulting in important economic losses. In Argentina, prevalence values of Cryptosporidium spp. and other enteropathogens such as group A rotavirus (RVA), bovine ... -
Phylogenetic and structural analyses of equine rotaviruses : three possible geographically related lineages
(2016)The structural analyses revealed that the aa substitutions in VP7 are in the antigenic sites and in the VP7:VP6 interaction region. In accordance, most of the aa changes in VP6 are in the top of the protein involving ... -
Prevalence and viability of group A rotavirus in dairy farm water sources
(2018-03)Aim: To analyse group A rotavirus (RVA) environmental contamination in waters used for calves' consumption and to assess viral viability in dairy farm water sources. Methods and Results: We analysed 202 samples of water ... -
Prevención y tratamiento de Rotavirus A mediante nanoanticuerpos VHH anti-VP6
(Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 2017-06)La diarrea asociada a Rotavirus A (RVA) representa una de las principales causas de mortalidad infantil a nivel mundial. Si bien la vacunación masiva contra RVA ha logrado disminuir significativamente las muertes causadas ... -
Probiotic as adjuvant significantly improves protection of the Lanzhou trivalent rotavirus vaccine against heterologous challenge in a gnotobiotic pig model of human rotavirus infection and disease
(MDPI, 2022-09)This preclinical study in the gnotobiotic (Gn) pig model of human rotavirus (HRV) infection and disease evaluates the effect of probiotic Lactobacillus rhamnosus GG (LGG) as a mucosal adjuvant on the immunogenicity and ... -
Quadruplex real-time TaqMan® RT-qPCR assay for differentiation of equine group A and B rotaviruses and Identification of group A G3 and G14 genotypes
(MDPI, 2023-07)Equine rotavirus A (ERVA) is the leading cause of diarrhea in foals, with G3P[12] and G14P[12] genotypes being the most prevalent. Recently, equine G3-like RVA was recognized as an emerging infection in children, and a ...