The Trump Administration started screening passengers arriving from China on January 17th, and banned entry of foreign nationals who were coming from China (with Americans thus arriving being required to self-quarantine). While obviously imperfect, this screened out or excluded many who would have brought in the coronavirus, slowing the spread into the US.
Obviously that 800 number will increase. Some DU-folk will celebrate when the number exceeds 1000, but the numbers DU-folk pulled out of their rectums are
-grade.
For comparison, here's what Obama "accomplished" with H1N1,
https://en.wikipedia.org/wiki/2009_flu_pandemic_in_the_United_States :
The 2009 flu pandemic in the United States was a novel strain of the Influenza A/H1N1 virus, commonly referred to as "swine flu", that began in the spring of 2009. The virus had spread to the US from an outbreak in Mexico.
As of mid-March 2010, the U.S. Centers for Disease Control and Prevention (CDC) estimated that about 59 million Americans contracted the H1N1 virus, 265,000 were hospitalized as a result, and 12,000 died.
The earliest reported cases in the US began appearing in late March 2009, in California, then spread to infect people in Texas, New York, and assorted other states by mid-April.
On April 22, the CDC first activated its Emergency Operations Center (EOC). On April 25, the World Health Organization (WHO) declared a public health emergency of international concern. On April 26, President Obama declared a national public health emergency in the U.S.
...
On October 24, 2009, President Barack Obama declared Swine Flu a national emergency in the United States. On November 12, 2009, the CDC reported an estimated 22 million Americans had been infected with 2009 A H1N1 and 4,000 Americans have died. On December 10, 2009, the CDC reported an estimated 50 million Americans or 1 in 6 people had been infected with the 2009 A H1N1 Virus and 10,000 Americans had died, by which time the vaccine was beginning to be widely distributed to the general public by several states. On December 23, 2009 the CDC reported a reduction of the disease by 59% percent and the disease was expected to end in the United States in January 2010.
On January 15, 2010, the CDC released new estimate figures for swine flu, saying it has sickened about 55 million Americans and killed about 11,160 from April through mid-December. On February 12, 2010, the CDC released updated estimate figures for swine flu, reporting that, in total, 57 million Americans had been sickened, 257,000 had been hospitalised and 11,690 people had died (including 1,180 children) due to swine flu from April through to mid-January.