Biogen Boston conference lead to hundreds of thousands of early coronavirus cases, study finds

A Biogen conference in Boston may have been ground zero for hundreds of thousands of coronaviurs cases.

Researchers believe the conference is one of the earliest Covid-19 outbreaks in the city.

The conference was held at the end of February at a hotel, and eventually led to 333,000 cases, according to research published in the academic journal Science.

Scientists researching the outbreak and its subsequent spread linked the Boston event to tens of thousands of infections in Florida.