Face shields, plastic barriers do little to stop COVID-19 spread — aerosol scientist

In this August 7, 2020 file photo, Interior Secretary Eduardo Año demonstrates use of the anti-COVID motorcycle barrier

News5 / Romel Lopez, file

MANILA, Philippines — A debate on Twitter has revived discussions on how the coronavirus spreads and on whether plastic barriers can help prevent the transmission of the virus as talk continues of requiring face shields again.

The debate was prompted by an interview on ABS-CBN News Channel of Jose-Luis Jimenez, an aerosol expert and chemistry professor from the University of Colorado-Boulder, who said that plastic barriers and face shields do not reduce the spread of infectious diseases that undergo airborne transmission such as COVID-19.

"Face shields are outdated. At the beginning of the pandemic, we saw that when two people talk, there were some projectiles, these droplets, were flying through the air and then a face shield could intercept them," Jimenez said last week on ANC's "The Rundown".

Full Story: https://www.philstar.com/headlines/2022/01/11/2153012/face-shields-plastic-barriers-do-little-stop-covid-19-spread-aerosol-scientist