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Coronavirus Cryptic Landscape and Draft Genome of a Novel CoV Clade Related to MERS From Bats Circulating in Northeastern Brazil.
J Med Virol
January 2025
Department of Morphology and Genetics, Federal University of São Paulo, São Paulo-SP, Brazil.
We identified seven distinct coronaviruses (CoVs) in bats from Brazil, classified into 229E-related (Alpha-CoV), Nobecovirus, Sarbecovirus, and Merbecovirus (Beta-CoV), including one closely related to MERS-like CoV with 82.8% genome coverage. To accomplish this, we screened 423 oral and rectal swabs from 16 different bat species using molecular assays, RNA sequencing, and evolutionary analysis.
View Article and Find Full Text PDFCryptic circulation of chikungunya virus in Côte d'Ivoire revealed by sentinel travellers, 2023-2024.
J Travel Med
January 2025
National Reference Center for Arboviruses, Inserm-IRBA, Marseille, France.
Molecular Xenomonitoring (MX) allows real-time surveillance of West Nile and Usutu virus in mosquito populations.
PLoS Negl Trop Dis
December 2024
Unité des Virus Émergents (UVE: Aix-Marseille Univ, Università di Corsica, IRD 190, Inserm 1207, IRBA), France.
West Nile Virus (WNV) and Usutu virus (USUV) circulate through complex cryptic transmission cycles involving mosquitoes as vectors, birds as amplifying hosts and several mammal species as dead-end hosts. Both viruses can be transmitted to humans through mosquito bites, which can lead to neuroinvasive and potentially fatal disease. Notably, WNV can also be transmitted through blood donations and organ transplants.
View Article and Find Full Text PDFA comprehensive RNA virome identified in the oyster Magallana gigas reveals the intricate network of virus sharing between seawater and mollusks.
Microbiome
December 2024
College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.
Background: As a globally farmed oyster species, Magallana gigas has garnered significant attention due to the contaminated RNA viruses that have caused illness in humans. However, limited knowledge is available on the bioaccumulation status and overall diversity of RNA virome in the M. gigas digestive tissues (DTs).
View Article and Find Full Text PDFEntomological surveillance during a major CHIKV outbreak in northwestern São Paulo: insights from São José do Rio Preto.
medRxiv
December 2024
Laboratório de Pesquisas em Virologia, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil.
Background: Brazil is considered an epicenter for emerging and re-emerging arboviruses that significantly impact public health. The mid-sized city of São José do Rio Preto (SJdRP) in northwestern São Paulo state is considered hyperendemic for arboviral diseases, with case numbers climbing each year. Only 45 cases of chikungunya (CHIKV) were reported in the city from 2015 to 2022, indicating cryptic circulation of this virus, but cases in the state increased notably in 2023.
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