The US Center for Disease Control and Prevention (CDC) has recently updated its guidelines on its website. The CDC has acknowledged the spread of COVID19 infection through aerosols in the updated guidelines. The agency has stated that the infection can spread through respiratory droplets and particles. Such droplets and particles are produced while breathing. Now, the CDC has stated on its website that airborne viruses including COVID19 are among the most infectious ones and can easily spread. Earlier, the CDC has stated in its guidelines that COVID19 mainly spreads among people in close contact through respiratory droplets when a person sneezes or coughs. Now it categorically states that the virus can spread through respiratory droplets and small particles, which are present in aerosols when a person coughs, sneezes, sings, talks, or breathes.
The federal agency has confirmed on its website that these particles can cause infection in the nose, mouth, airways, and lungs. This is considered the main way the infection spreads. The authority has said that there is enough evidence that droplets and airborne particles can remain deferred in the air, which can be breathed by others. The CDC guidelines say that the virus can travel a distance beyond 6 feet as well. It has acknowledged that there is a high risk involved in an indoor environment without proper ventilation. The agency has advised that people should maintain social distancing of 6 feet, cover their mouth, and nose with the mask. People need to practice good hand hygiene and keep disinfecting surfaces.
The updated guidelines mention that people should stay at home as much as possible and isolate themselves whenever they feel sick. The authority has suggested that people should use air purifiers to reduce airborne germs in indoor spaces. The updated regulation of the agency has said that a mask should not overwhelm other preventive measures. There have been many studies, which have shown the possibility of air transmission of coronavirus. A panel of scientists has suggested that the virus can cause infection through talking and breathing as well. The findings of different studies are quite consistent with the aerosolization of the virus by normal breathing.