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, ...

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 ...

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 ...

Yearly Covid-19 Booster Recommendations in Canada, Europe, and Australia. Although the rapid development of multiple Covid-19 vaccines in 2020 represents a major scientific, medical, and regulatory ...

For many, COVID-19 has faded into a recent memory. Even for hospitals, healthcare providers, and clinical staff, the way we view the virus has evolved since 2020. Yet, the lessons learned should not ...