Exactly one year ago on Jan. 19, 2020, a 35-year-old man checked into an urgent-care clinic in Snohomish County, Washington, with a 4-day history of cough & fever. He had arrived at Seattle-Tacoma airport on Jan. 15, after traveling back from visiting family in Wuhan, China, for three months.
The next day, the CDC confirmed that the patient’s nose and throat swabs had tested positive for 2019-nCoV, in a PCR test. He was the first known case of Covid-19 in the States. The patient got worse before he got better, but by Feb. 3, he was well enough to go home.
There must already have been many other unknown carriers of the virus in the Seattle area, though. The Life Care Center of Kirkland, Washington, was the first Covid-19 hotspot in the US. In February and March, 46 people lost their lives there.
By Jan. 19, 2021, the virus had made it into every county in the entire United States, and had killed 400,000 people.