White House Press Secretary Kayleigh McEnany speaks to reporters outside the West Wing of the White House on October 2. | Drew Angerer/Getty Images

Why doesn’t every workplace have the same level of testing as the White House?

President Donald Trump and first lady Melania Trump have tested positive for SARS-CoV-2, the virus that causes Covid-19.

While Trump has a number of risk factors for a severe case of the disease, one advantage he does have is that his infection was caught fairly early, before any severe symptoms arose. That’s because the White House is able to conduct regular and rapid tests, something that is still out of reach for many workplaces across the United States even as they reopen.

Identifying an infected person early and isolating them can help limit the spread of the virus; it also makes it more