The U.S. Centers for Disease Control and Prevention (CDC) has confirmed that COVID-19 can be transmitted by air, officially acknowledging the higher risk during the new crown pandemic,media reported. The CDC says that while “COVID-19 is most commonly transmitted during close contact, it can sometimes be transmitted by air.”
The CDC says those at highest risk of infection are those who come into contact with new crown patients within 6 feet, or who have direct contact with them. “People with COVID-19 cough, sneeze, sing, talk or breathe, and they get respiratory droplets.” The CDC explains. These can be seen passing through smaller droplets of varying sizes and causing infection when inhaled or deposited on mucous membranes, such as the oral or nasal mucous membranes.
The CDC, however, acknowledges that air propagation is also a key factor. “Some infections can be transmitted by viruses exposed to small droplets and particles that can stay in the air for minutes to hours, ” the agency explained. “These viruses may be able to infect people up to 6 feet away from the infected person, or after that person has left the space.” This is much the same as other infectious diseases such as tuberculosis, measles and chickenpox.
“There is evidence that under certain conditions, people with COVID-19 appear to have infected more than 6 feet away from others,” the CDC said. “These transmissions occur in under-ventilated enclosed spaces. Sometimes, an infected person is breathing in large mouths, such as while singing or playing sports. “
“In these cases, scientists believe that the number of less contagious droplets and particles produced by COVID-19 patients has become concentrated enough to spread the virus to others,” the CDC concluded. “Infected people leave at the same time or not long after COVID-19 patients are in the same space.”
Still, the CDC recommends keeping a social distance, at least 6 feet apart, and covering your nose and mouth with a mask. In addition, regular hand washing, disinfection of the surface is also essential. The CDC also says it wants to avoid “crowded indoor spaces” and try to ventilate indoor spaces and outdoor air to reduce the likelihood of respiratory droplet retention, which is contagious.
In a new statement, the CDC acknowledged that the guidelines had been updated, but insisted that its overall recommendations remained unchanged.
“The CDC continues to believe that, based on current science, the closer people are to COVID 19 patients and the longer they stay with them, the more likely they are to become infected. Today’s update acknowledges that there are some published reports that, in limited and unusual cases, COVID-19 patients may infect people up to 6 feet away. In these cases, transmission occurs in poorly ventilated and enclosed spaces, which often involve activities that cause increased breathing, such as singing or movement. Such environments and activities can lead to the accumulation of particles carried by viruses”.