Multiple Lineages of Dengue Virus Type 1 in Rio de Janeiro, Brazil
Author Information
Author(s): Flavia B dos Santos, Fernanda B Nogueira, Márcia G Castro, Priscila C G Nunes, Ana Maria B de Filippis, Nieli R C Faria, Jaqueline B S Simões, Simone A Sampaio, Clarice R Santos, Rita Maria R Nogueira
Primary Institution: Oswaldo Cruz Institute, Rio de Janeiro, Brazil
Hypothesis
What are the evolutionary patterns of DENV-1 strains in Rio de Janeiro since their introduction?
Conclusion
This study reports the presence of multiple lineages of DENV-1 in Brazil, indicating potential lineage replacement and the need for ongoing monitoring.
Supporting Evidence
- DENV-1 was first introduced in Brazil in 1986 and re-emerged in 2009.
- Phylogenetic analysis revealed distinct clades of DENV-1 strains.
- The study highlights the importance of monitoring DENV for public health.
Takeaway
Scientists found different types of dengue virus in Rio de Janeiro, which helps us understand how the virus changes and spreads.
Methodology
Phylogenetic analysis of DENV-1 strains isolated from human serum using RT-PCR and sequencing.
Limitations
The study suggests that lineage replacement is not fully understood and requires further investigation.
Participant Demographics
Strains were isolated from human serum in Rio de Janeiro.
Digital Object Identifier (DOI)
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