SARS-CoV-2 variants: Past, present and future.- COVID-19 pandemic and behavioral change: The cases of Florida and Ohio.- Integrating social sciences to mitigate against covid.- Re-thinking the infodemic: Social media and offline action in the COVID-19 pandemic.- Mapping COVID-19 in Japan and greater Tokyo area, socio-spatial and political analysis of the epidemic.- Application of SARS-CoV-2 serology testing: A case study