Five-Year (2017-2022) Evolutionary Dynamics of Human Coronavirus HKU1 in Southern France With Emergence of Viruses Harboring Spike H512R Substitution.

HCoV-HKU1 diversity and evolution were scarcely studied. We performed next-generation sequencing (NGS) and analysis of HCoV-HKU1 genomes over 5 years. NGS used Illumina technology on NovaSeq 6000 following whole genome PCR amplification by an in-house set of primers designed using Gemi and PrimalScheme.

Characteristics of the 2023-2024 epidemic in adults, Southeast France.

Objectives: Analysis of current 2023-2024 (Mp) infection characteristics in adults.

Methods: A retrospective case series analysis was performed on polymerase chain reaction-positive adult patients admitted to the University Hospital of Marseille from April 2017 to June 2024. Clinical presentations, treatments, and outcomes were assessed.