The Junin virus strain Candid #1 was developed as a live attenuated vaccine for Argentine haemorrhagic fever. In this paper we report the nucleotide sequences of S RNA of Candid #1 and its more virulent ancestors XJ#44 and XJ (prototype). Their relationship to Junin virus wild-type MC2 strain and other closely and distantly related arenaviruses was also examined. Comparisons of the nucleotide and amino acid sequences of N and GPC genes from Candid #1 and its progenitor strains revealed some changes that are unique to the vaccine strain. These changes could be provisionally associated with the attenuated phenotype.
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http://dx.doi.org/10.1099/0022-1317-78-7-1605 | DOI Listing |
Viruses
December 2024
School of Medicine, Zhejiang University, Hangzhou 310063, China.
The Junín virus (JUNV) is one of the New World arenaviruses that cause severe hemorrhagic fever. Human transferrin receptor 1 (hTfR1) has been identified as the main receptor for JUNV for virus entry into host cells. To date, no treatment has been approved for JUNV.
View Article and Find Full Text PDFMol Divers
December 2024
Centre for Biotechnology and Microbiology, University of Swat, Swat, Pakistan.
The Junin virus causes Argentine hemorrhagic fever, leading to severe complications such as high fever, malaise, muscle pain, and bleeding disorders, including hemorrhages in the skin and mucous membranes. Neurological issues like confusion, seizures, and coma can also occur. Without prompt and effective treatment, the disease can be fatal, with mortality rates reaching up to 30%.
View Article and Find Full Text PDFJ Gen Virol
December 2024
Laboratory of Emerging Viral Diseases, International Research Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan.
Lassa virus (LASV) is an Old World (OW) mammarenavirus that causes Lassa fever, a life-threatening acute febrile disease endemic in West Africa. Lymphocytic choriomeningitis virus (LCMV) is a worldwide-distributed, prototypic OW mammarenavirus of clinical significance that has been largely neglected as a human pathogen. No licensed OW mammarenavirus vaccines are available, and the current therapeutic option is limited to the off-label use of ribavirin, which offers only partial efficacy.
View Article and Find Full Text PDFMedicina (B Aires)
December 2024
Fundación para la Investigación en Neuro Epidemiología (FINEP), Junín, Buenos Aires, Argentina.
The "acute undifferentiated febrile illness" (AUFI) encompasses a range of diseases characterized by the presence of fever, often prompting consultations in emergency services. During epidemics like COVID-19 or dengue, a surge in consultations occurs, resulting in long wait times for patients. Errors in first diagnosis can result in severe consequences.
View Article and Find Full Text PDFPLoS Pathog
December 2024
Unité de Biologie des Infections Virales Emergentes, Institut Pasteur, Université Paris Cité, Lyon, France.
Several Old World and New World Mammarenavirus are responsible for hemorrhagic fever in humans. These enveloped viruses have a bi-segmented ambisense RNA genome that encodes four proteins. All Mammarenavirus identified to date share a common dependency on myristoylation: the addition of the C14 myristic acid on the N-terminal G2 residue on two of their proteins.
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