Since the COVID‐19 pandemic began, various severe acute respiratory syndrome
coronavirus 2 variants have been identified with different characteristics than the nonvariant …

Severe acute respiratory syndrome coronavirus 2 is reappearing with an increasing number
of variants every day; this study aimed to determine the effect of B. 1.1. 7 (Alpha), B. 1.351 …

Severe acute respiratory syndrome coronavirus 2 is reappearing with an increasing number
of variants every day; this study aimed to determine the effect of B. 1.1. 7 (Alpha), B. 1.351 …

Background: This study aimed to analyze the differences in the epidemiologic and clinical
characteristics of coronavirus disease 2019 (COVID-19) in children hospitalized in 2021 …

Background Recent COVID-19 surges are attributed to emergence of more transmissible
SARS-CoV-2 variants of concern (VOCs). The relative severity of VOCs in children is …

Objectives To compare the clinical and laboratory features of severe acute respiratory
syndrome 2003 (SARS) and coronavirus disease 2019 (COVID-19) in 2 Chinese pediatric …

Aim We examined the prevalence of the severe acute respiratory syndrome coronavirus 2
(SARS‐CoV‐2) in children during the autumn and winter season from 1 September 2021 to …

Recently, the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) Omicron
variant (B. 1.1. 529) was first identified in Botswana in November 2021. It was first reported …

Objective Little is known about the transmission of coronavirus disease 2019 (COVID-19) in
young children. This study aimed to clarify the risk of COVID-19 transmission among this …

Objective To evaluate the severity and clinical outcomes of the SARS-CoV-2 gamma variant
in children and adolescents hospitalized with COVID-19 in Brazil. Study design In this …