Jiayi Liu

Emergence of novel SARS-CoV-2 variants keeps slowing down

Abstract Background Although COVID-19 pandemic has no longer been classified as an international public health emergency of concern after May 2023, multiple variants with different characteristics keep emerging. Given the complex spatial-temporal characteristics of epidemics, res...

Latent profile analysis of sleep quality among newly employed nurses: a cross-sectional study

<title>Abstract</title> Background Newly employed nurses face unique challenges during role transition, making them particularly vulnerable to sleep disturbances. However, traditional assessments overlook the heterogeneity of sleep problems in this population. This study employed...