Complete Genome Sequence of Mayaro Virus Imported from the Amazon Basin to São Paulo State, Brazil

Mânlio Tasso Oliveira Mota1, Danila Vedovello1, Cassia Estofolete1

  • 1School of Medicine of São José do Rio Preto (FAMERP), São José do Rio Preto, SP, Brazil.

Genome Announcements
|November 27, 2015
PubMed

Insights

Mayaro virus (MAYV), a tropical arbovirus, was identified in a Brazilian patient presenting with fever and joint pain. This study details the complete genome sequence of this MAYV isolate, contributing to understanding its spread.

Area of Science:

  • Virology
  • Infectious Diseases
  • Public Health

Background:

  • Mayaro virus (MAYV) is a significant arbovirus prevalent in the tropical Americas.
  • MAYV infections can cause symptoms such as arthralgia, fever, and headache.
  • The geographic distribution and genetic diversity of MAYV are crucial for public health surveillance.

Purpose of the Study:

  • To report the complete genome sequence of a Mayaro virus isolate.
  • To characterize a MAYV strain detected in a patient returning from the Amazon basin.
  • To contribute to the genomic surveillance of arboviruses in Brazil.

Main Methods:

  • Viral RNA extraction and sequencing.
  • Whole-genome sequencing of the MAYV isolate.
  • Bioinformatic analysis of the viral genome.

Main Results:

  • The complete genome sequence of a Mayaro virus isolate was successfully obtained.
  • The isolate was identified in a patient presenting with classic MAYV symptoms.
  • The patient had recently traveled to the Amazon basin, indicating potential geographic spread.

Conclusions:

  • The genomic data provides valuable insights into the MAYV strain circulating in the region.
  • This finding highlights the importance of diagnostic capabilities for arboviruses in non-endemic areas.
  • Continued genomic surveillance is essential for monitoring arbovirus emergence and transmission patterns.

Related Concept Videos

Viruses with RNA Genomes01:29

Viruses with RNA Genomes

RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
1.3K
Arboviral Encephalitis01:25

Arboviral Encephalitis

Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
25
Human Virome01:26

Human Virome

The human body harbors a vast and diverse viral community known as the human virome. The virome includes bacteriophages that infect bacteria, and eukaryotic viruses that infect human cells. Transient dietary and environmental viruses also contribute to this dynamic ecosystem. Estimates suggest the human body may contain on the order of 10¹³ viral particles, though abundance varies widely by body site and detection method.Comprehensive characterization of the virome has become possible...
32
Retrovirus Life Cycles01:10

Retrovirus Life Cycles

Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
50.6K
Viruses of Archaea01:29

Viruses of Archaea

Archaeal viruses play a crucial role in the ecosystems of extremophilic archaea, particularly those belonging to the phyla Euryarchaeota and Crenarchaeota. By shaping host evolution and facilitating gene transfer, these viruses influence microbial communities and contribute to genetic diversity in extreme environments. The archaea they infect thrive in acidic hot springs and hydrothermal vents characterized by high temperatures and low pH. Archaeal viruses exhibit remarkable structural...
652
Viral Recombination00:57

Viral Recombination

Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
25.6K