ALEXANDRA HUDSON ON January 1, 2020, as the world welcomed a new decade, Chinese authorities in Wuhan shut down a seafood market in the central city of 11 million, suspecting that an outbreak of a new "viral pneumonia" affecting 27 people might be linked to the site. Early lab tests in China pointed to a new coronavirus. By January 20 it had spread to three countries. For most people, it was a minor health scare unfolding half a world away. Nearly a year later it has changed lives fundamentally. Almost everyone has been affected, be it through illness, losing loved…