A new hospital was rapidly built in Wuhan, China, in early 2020 STR/AFP via Getty Images
On 31 December 2019, about a cluster of “viral pneumonia” cases of unknown cause in the city of Wuhan. Two years later, the coronavirus now known as SARS‑CoV-2 has resulted in at least 5.3 million deaths. As the world awaits the full impact of the new variant omicron, New ˾þ looks back at the phenomenal scientific endeavour across the pandemic, and at how much we now know about the virus and how to fight it.…



