Browsing by Autor "Melvin Barrantes"

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Antiviral resistance in influenza viruses circulating in Central and South America based on the detection of established genetic markers
(Wiley, 2009) Josefina García; Merly Sovero; Alberto Torres; Jorge Gómez; Richard W. Douce; Melvin Barrantes; Félix Sánchez; Mirna Jimenez; Guillermo Comach; Ivette De Rivera
These findings suggest a limited effectiveness of influenza inhibitors due to the detection of resistance among A/H1 and A/H3 viruses.
Circulating Strains of Human Respiratory Syncytial Virus in Central and South America
(Public Library of Science, 2011) Merly Sovero; Josefina García; Tadeusz J. Kochel; V. Alberto Laguna-Torres; Jorge Gómez; Wilson Chicaiza; Melvin Barrantes; Félix Sánchez; Mirna Jimenez; Guillermo Comach
Human respiratory syncytial virus (HRSV) is a major cause of viral lower respiratory tract infections among infants and young children. HRSV strains vary genetically and antigenically and have been classified into two broad subgroups, A and B (HRSV-A and HRSV-B, respectively). To date, little is known about the circulating strains of HRSV in Latin America. We have evaluated the genetic diversity of 96 HRSV strains by sequencing a variable region of the G protein gene of isolates collected from 2007 to 2009 in Central and South America. Our results show the presence of the two antigenic subgroups of HRSV during this period with the majority belonging to the genotype HRSV-A2.
Molecular characterization of adenovirus circulating in Central and South America during the 2006–2008 period
(Wiley, 2009) Josefina García; Merly Sovero; V. Alberto Laguna-Torres; Jorge Gómez; Wilson Chicaiza; Melvin Barrantes; Félix Sánchez; Mirna Jimenez; Guillermo Comach; Ivette Lorenzana
Our results indicate that 161(76%) adenoviruses belong to subgroup C, 45 (21%) to subgroup B and 7 (3%) to subtype E4.