Understanding the viral shedding time of Omicron variant BA.2 infection in Shanghai: A population-based observational study.

ABSTRACT:

Objectives

To explore the multifactorial causality of prolonged viral shedding time and identify different viral shedding trajectories in Omicron BA.2 variant infections.

Methods

The Kaplan-Meier method was used to estimate the survivor function, and the Cox proportional hazards model was fitted to identify factors associated with viral shedding time. Group-based trajectory model (GBTM) was used to identify different viral shedding trajectories. Ordinal logistic regression was used to identify factors that significantly impacted the trajectory membership.

Results

The overall median viral shedding time was 12 days (interquartile range [IQR]: 8-15). Viral shedding time was longer for female cases, cases who were incompletely vaccinated, cases with comorbidities, cases w

SUBMITTER: Lu Z 

PROVIDER: S-EPMC10277587 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature