Five years ago, on March 11, 2020, the World Health Organization declared COVID-19 a pandemic. Whether it still is depends on who you ask. There are no clear criteria to mark the end of a pandemic, ...

In the late winter and early spring of 2020, the coronavirus pandemic grew from a geographically limited viral infection into a full-blown national emergency, disrupting life as we knew it. The ...

During the fall of 2019, in a lab in Wuhan, China, a cluster of atoms weighing less than one-trillionth of a gram mutated ever so slightly, cascading into the greatest disruption to human life in over ...

Researchers at the University of Leeds, UK, have recently analyzed the World Health Organization (WHO) 's pre- and post-pandemic reports to explore the scientific basis and rationale for implementing ...