We aim to evaluate the evolution differences in the incidence and case fatality rate (CFR) of
severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) Delta and Omicron …

The analysis of the effectiveness of booster shots compared with primary vaccination is
extremely vital. This paper aimed to summarize the results of all available evidence studies …

Objective The COVID‐19 vaccination strategy has been widely used to protect population
health worldwide. This study aims to summarize the cost‐effectiveness evidence of …

Since COVID-19 vaccine uptake was found to be especially low among young adults, the
present study investigated COVID-19 risk perception as predictor of COVID-19 vaccination …

During the ongoing global COVID-19 pandemic disease, like several countries, Romania
experienced a multiwaves pattern over more than two years. The spreading pattern of SARS …

Several waves of COVID-19 caused by different SARS-CoV-2 variants have been recorded
worldwide. During this period, many publications were released describing the influence of …

BACKGROUND COVID-19 during pregnancy is associated with adverse outcomes for both
the mother and fetus. SARS-CoV-2 vaccination has significantly reduced the risk for …

Abstract The SARS-CoV-2 Delta variant, first identified in October 2020, quickly became the
dominant variant worldwide. We used publicly available data to explore the relationship …

We performed a prospective, cross-sectional study of household contacts of symptomatic
index case-patients with SARS-CoV-2 infection during the shift from Delta-to Omicron …

Objectives This study aimed to: 1) estimate the prevalence of the coronavirus disease 2019
(COVID-19) infection and mental health problems in Chinese adults, after the relaxation of …