As we have already said, wearing a mask is an important means of preventing coronavirus infections. Yesterday ，the White House ordered all West Wing employees to wear masks at work unless they are sitting at their desks.In an internal email obtained by The New York Times, people who work in the cramped quarters around the Oval Office were told that “as an additional layer of protection, we are requiring everyone who enters the West Wing to wear a mask or face covering.”During Mr. Trump’s afternoon news conference, senior White House aides could be seen standing along the side of the Rose Garden — all of them wearing masks.
Nearly one third of 200 Chelsea residents who gave a drop of blood to researchers on the street this week tested positive for antibodies linked to COVID-19, a startling indication of how widespread infections have been in the densely populated city. Sixty-four residents had antibodies that the immune system makes to fight off the coronavirus.The 200 participants generally appeared healthy, but about half told the doctors they had had at least one symptom of COVID-19 in the past four weeks. Wearing masks and maintaining social distance are very important. Because you don’t know who is spreading the virus.
CDC recommends wearing cloth face coverings in public settings where other social distancing measures are difficult to maintain (e.g., grocery stores and pharmacies), especially in areas of significant community-based transmission. CDC also advises the use of simple cloth face coverings to slow the spread of the virus and help people who may have the virus and do not know it from transmitting it to others. Cloth face coverings fashioned from household items or made at home from common materials at low cost can be used as an additional, voluntary public health measure.
Don’t have much faith in government advice, thousands of 9/11 first responders exposed to dust from the collapsed WTC buildings died from induced cancers and other induced medical complications years later, at the time they were told don't worry, there was no need to wear special masks, air was safe !