AUTHOR=Zhang Jingfen , Li Qiaoyu , Liu Jingjing , Fan Fangfang , Shi Yiwei , Yu Xiao TITLE=Prevalence of hypervirulent Klebsiella pneumoniae strains in COVID-19 patients with bacterial co-infections JOURNAL=Frontiers in Microbiology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2025.1535893 DOI=10.3389/fmicb.2025.1535893 ISSN=1664-302X