Genome sequences of human coronavirus NL63 diagnosed in southern France

Houmadi Hikmat1,2, Céline Boschi1,2,3, Sarah Aherfi1,2

  • 1IHU Méditerranée Infection, Marseille, France.

PubMed

Insights

Researchers sequenced 17 human coronavirus NL63 genomes from France. Most identified strains belonged to subgenotype C2, with one belonging to subgenotype B1, providing insights into coronavirus diversity.

Area of Science:

  • Virology
  • Genomics
  • Infectious Diseases

Background:

  • Human coronavirus NL63 (HCoV-NL63) is a common respiratory pathogen.
  • Understanding the genetic diversity of HCoV-NL63 is crucial for epidemiology and control.

Purpose of the Study:

  • To sequence and characterize human coronavirus NL63 genomes from southern France.
  • To determine the genetic diversity and subgenotypic distribution of HCoV-NL63 in the studied population.

Main Methods:

  • Respiratory samples from patients in southern France were collected for diagnostics.
  • In-house multiplex PCR amplification was employed for viral RNA.
  • Next-generation sequencing using Illumina technology was performed to obtain complete genomes.

Main Results:

  • Seventeen complete human coronavirus NL63 genomes were successfully sequenced.
  • Sixteen genomes were classified under subgenotype C2.
  • One genome was identified as belonging to subgenotype B1.

Conclusions:

  • This study provides valuable genomic data on HCoV-NL63 from France.
  • The findings highlight the predominance of subgenotype C2 in the sampled population.
  • Further genomic surveillance is needed to track coronavirus evolution and spread.