When scientists in South Africa noticed an uptick in Covid-19 cases in the Gauteng Province last November, they began investigating the source. These researchers and others in Botswana quickly discovered the Omicron variant and heroically shared their discovery with the rest of the world. And yet it was still too late — Omicron was already rapidly infecting people across the globe.
{iframe}https://www-nytimes-com.cdn.ampproject.org/c/s/www.nytimes.com/2022/02/02/opinion/covid-variant-air-sewage.amp.html{/iframe}