This study analyzes the impact of large anti‐lockdown protests on the spread of SARS‐CoV‐
2 in Germany. Since protesters at such large gatherings are very mobile and largely neglect …

In March 2020, in an attempt to slow the spread of Covid-19, several countries intervened by
imposing strict lockdown measures that limited contact among people. In contrast, Sweden …

Abstract The Coronavirus disease 2019 (COVID-19) caused by the SARS-CoV-2 virus led to
over 626 million infections and 6.5 million deaths worldwide and forced to cancel or …

Background We sought to assess the risk of COVID-19 and seasonal flu including
respiratory syncytial (RSV) and influenza viruses during the FIFA Arab Cup 2021 in Qatar …

Previous studies have not assessed the causal effect of the Olympic Games on the spread of
pandemics. Using the synthetic control method and the national public city data in Japan …

The long-term effect of physical activity on body composition in Master athletes is rarely
presented in the literature. The aim of this study was to identify possible changes in body …

The emergence and rapid spread of novel variants of concern (VOC) of the coronavirus 2
constitute a major challenge for spatial disease surveillance. We explore the possibility to …

To evaluate the COVID-19 infection risk and the effectiveness of countermeasures at mass-
gathering events, we measured the dispersion and advective diffusion of artificial droplets …

This paper uses a synthetic control method (SCM) and a Ridge Augmented SCM to estimate
the impact of holding the Tokyo Olympic games on the number of newly confirmed COVID …

Background Various forms of contact restrictions have been adopted in response to the
Covid-19 pandemic. Around February 2021, rapid testing appeared as a new policy …