Centers for Disease Control and Prevention

A total of 621 people from the cruise ship have now been confirmed to have COVID-19 — or about 20% of the 3,011 people who had been tested for the coronavirus disease as of Wednesday.

Approximately 350 passengers landed Wednesday in California, where they will be quarantined after leaving China. Worldwide, the number of confirmed cases of the respiratory virus continues to rise.

Last week, China had 4,400 cases of the Wuhan coronavirus. On Monday alone, Chinese health officials reported 2,829 new cases.

The Centers for Disease Control and Prevention said most people who have had lung injuries after vaping had consumed THC-containing products.

Amid growing concerns over e-cigarette health risks, the Drug Enforcement Administration says it will collect vaping devices and cartridges at National Prescription Drug Take Back Day on Saturday.

The CDC says it is probing 450 reported cases of illness in people who vaped nicotine or cannabis products. Health officials say it's too soon to pinpoint a single product or substance as the cause.

New York officials say tests found high levels of vitamin E in cannabis vaping products used by people who developed lung damage. But it's only one of many possible causes still under investigation.