Health-care companies rose as traders bet demand for vaccination, testing and other health-care services would continue to grow.

Vaccination can ease some of the mental illness and anxiety associated with the Covid-19 pandemic, according to researchers at the University of Southern California and the Rand Group.

Drug developers Merck and Japan's Eisai received commercial approval for their Keytruda/Lenvima cancer-drug combination in Eisai's home country.

Write to Rob Curran at rob.curran@dowjones.com

(END) Dow Jones Newswires

12-27-21 1623ET