The clinical course and outcome of COVID-19 are highly variable, ranging from
asymptomatic infections to severe disease and death. Understanding the risk factors of …

Omicron variants have highly influenced the entire globe. It has a high rate of
transmissibility, which makes its management tedious. There are various subtypes of …

In utero exposure to COVID-19 infection may lead to large intergenerational health effects.
The impact of infection exposure has likely evolved since the onset of the pandemic as new …

Importance Clinical manifestations of SARS-CoV-2 variants have not been systematically
compared in children. Objective To compare symptoms, emergency department (ED) chest …

Background The epidemiology of coronavirus disease 2019 (COVID-19) continues to
develop with emerging variants, expanding population-level immunity, and advances in …

In this issue of Radiology, Lee et al (2) compared clinical and imaging outcomes of patients
infected with subvariants of Omicron, the older BA. 1/BA. 2 (n= 1269) versus newer BA. 5 (n …

At the start of the pandemic, liver transplant recipients (LTR) were at high risk of developing
severe COVID-19. Here, the outcomes of breakthrough infections in fully vaccinated LTR (n …

Phase 3 clinical trials and real-world effectiveness studies showed that China's two main
inactivated COVID-19 vaccines are very effective against serious illness. In November 2021 …

Rationale and Objectives The Omicron variant of COVID-19 is less severe than the ancestral
strain, leading to the potential for deaths in patients infected with the virus but who die of …

Background China has been using inactivated coronavirus disease 2019 (COVID-19)
vaccines as primary series and booster doses to protect the population from severe to fatal …