Objective To review the evidence on the effectiveness of public health measures in reducing
the incidence of covid-19, SARS-CoV-2 transmission, and covid-19 mortality. Design …

Background Physical distancing, wearing face masks and hand hygiene are evidence-
based methods to protect the public from coronavirus disease 2019 (COVID-19) infection …

Abstract Background In December 2019, a novel coronavirus (2019-nCoV) was recognized
in Wuhan, China. It was characterised by rapid spread causing a pandemic. Multiple public …

Background Novel coronavirus disease 2019 (COVID-19) has become a pandemic, and
over 80 million cases and over 1.8 million deaths were reported in 2020. This highly …

Background In an unparalleled global response, during the COVID-19 pandemic, 90
countries asked 3.9 billion people to stay home. Yet other countries avoided lockdowns and …

Background The COVID-19 pandemic has affected people's engagement in health
behaviors, especially those that protect individuals from SARS-CoV-2 transmission, such as …

Introduction Since the outbreak of the severe acute respiratory syndrome coronavirus-2
(SARS-CoV-2) began, necessary measures to prevent virus transmission and reduce …

Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes
COVID-19 and is spread person-to-person through close contact. We aimed to investigate …

Abstract Background Coronavirus disease (COVID-19) is a global public health agenda with
high level of pandemicity. There is no effective treatment, but prevention strategies can alter …

Introduction Transmission of COVID-19 within families and close contacts accounts for the
majority of epidemic growth. Community mask wearing, hand washing and social distancing …