Health-care companies fell as traders rotated into cyclical sectors more sensitive to changes in Federal Reserve policy.

French drug giant Sanofi fell sharply amid concerns about the status of a multiple-sclerosis drug program.

Biotechnology startup Cerevance could earn more than $1 billion through a collaboration with drugmaker Merck to research potential treatments for Alzheimer's disease.

Catalyst Pharmaceuticals rose sharply after the company reported second-quarter earnings that beat analysts' expectations.

AeroClean Technologies slumped, a session after a 60% jump in response to the granting of a patent for an air treatment system and method.

British health authorities launched a polio booster vaccination campaign for children in London on Wednesday after levels of poliovirus detected in local wastewater showed that the virus is circulating in the U.K. capital.


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

(END) Dow Jones Newswires

08-10-22 1657ET