Two members of Congress have quarantined themselves. The stock market is in freefall. Seattle is under siege.

And a tainted cruise ship will finally dock in California sometime Monday with at least 21 infected people.

The coronavirus showed no signs of slowing its spread across the United States as confirmed cases surpassed 560 across 34 states and the District of Columbia.  The U.S. death toll rose to 22, while the worldwide total approached 4,000.

Iowa was among the latest states to report an encounter with the coronavirus as Gov. Kim Reynolds announced three presumptive positive cases. All three people were on a cruise through Egypt and are now isolated at home, Reynolds told reporters.