Saturday, 12 December 2020

Infected after 5 minutes, from 20 feet away: South Korea study shows COVID-19's spread indoors

‘KJ Seung, an infectious disease expert and chief of strategy and policy for the nonprofit Partners in Health’s Massachusetts COVID response, said the study was a reminder of the risk of indoor transmission as many nations hunker down for the winter. The official definition of a “close contact” — 15 minutes, within 6 feet — isn’t foolproof.

‘Lee and his team recreated the conditions in the restaurant... “Incredibly, despite sitting a far distance away, the airflow came down the wall and created a valley of wind. People who were along that line were infected,” Lee said. “We concluded this was a droplet transmission, and beyond two meters.”

“Eating indoors at a restaurant is one of the riskiest things you can do in a pandemic,” she [Linsey Marr, a civil and environmental engineering professor at Virginia Tech who studies the transmission of viruses in the air] said. “Even if there is distancing, as this shows and other studies show, the distancing is not enough.”

Read here (LA Times, Dec 12, 2020)

Worst ever Covid variant? Omicron

John Campbell shares his findings on Omicron.  View here (Youtube, Nov 27, 2021)