Federal health officials updated the public guidance about how the Coronavirus spreads on Friday. Transmission occurs by aerosolized particles and inhaling very fine respiratory droplets and touching contaminated hands to one’s mouth, nose, or eyes or through contact with sprayed droplets.
The Centre for Disease Control and Prevention said that when one is more than six feet away from an infected individual airborne virus can be inhaled. The new findings posted online are different from what the agency said previously that most infections were acquired through close contact, not airborne transmission.
As the Coronavirus started last year, infectious disease experts kept saying for months that both the World Health Organization and the C.D.C. were overlooking research that strongly suggested the Coronavirus traveled aloft in small, airborne particles. Many scientists on Friday accepted the fact stated by the agency.
According to Linsey Marr, an aerosol expert at Virginia Tech, “C.D.C. has now caught up to the latest scientific evidence, and they’ve gotten rid of some old problematic terms and thinking about how transmission occurs.”
Some expert said the new focus emphasis the need for the Federal Occupational Safety and Health Administration to issue standards for employers to address potential hazards in the workplace. According to David Michaels, head of OSHA in the Obama administration and an epidemiologist at George Washington School of Public Health, “They hadn’t talked much about aerosols and were more focused on droplets.”
Other researchers and David expressed concern that the C.D.C. preventing exposure to the aerosolized virus has not yet strengthened its recommendations. David said the new information has significant implications for the workplace and indoor environments. The airborne properties are virus-laden particles for hours, and they collect in a room that doesn’t have good ventilation. There is still a risk when one is further away, and these particles stay in the air.
Donald Milton, an aerosol scientist at the University of Maryland, said federal officials should provide better guidelines for keeping workplaces safe. He further said we need better focus on suitable respirators for people who have to be for an extended period have to be in close contact with other people.