Fernando Rosado Spilki

The paper characterizes Chikungunya virus outbreaks in Brazil's southernmost state, identifying lineage changes and transmission dynamics from 2017 to 2021.

The paper identifies a novel Y380Q mutation in the SARS-CoV-2 spike protein RBD, along with C379W, which may interfere with neutralizing antibody binding in early pandemic variants.

The paper analyzes SARS-CoV-2 genomic mutations across Brazil from 2020 to 2021, identifying high mutation rates and regional diversity, with many mutations in the spike gene.

The paper reports the predominance of the Gamma (P.1) lineage in Tocantins and describes the emergence of a new mutation L106F in ORF3a from 8 genomes.

The paper investigates the spread of the E484K variant and identifies a novel lineage VUI-NP13L in Brazil, along with co-infection events between different SARS-CoV-2 lineages.

This study compares four RNA extraction kits for SARS-CoV-2 detection via qRT-PCR, finding that magnetic beads and silica column methods perform best.

This study compares RT-dPCR with RT-qPCR for SARS-CoV-2 quantification, finding RT-dPCR provides higher precision and equivalent results across assays.