More than 150 deaths, all in Mexico.

Countries with confirmed or suspected cases: Mexico, U.S., Canada, Scotland, New Zealand, Spain, France, Israel.

U.S. states with confirmed or suspected cases: New York, California, Texas, Kansas, Ohio.

U.S. discourages nonessential travel to Mexico.

World Health Organization raises alert level to Phase 3, saying the disease is no longer containable.

European Union health commissioner urges Europeans to postpone nonessential travel to U.S. and Mexico.

World stock markets fall as investors worry that outbreak could derail economic recovery.

— Associated Press