The philanthropist Bill Gates expressed concern this week during a trip to India that rich countries may cut spending on health aid to the world’s poor because of the global financial crisis, reports Reuters news agency.

Mr. Gates said such people need a “strong voice” advocating for them. He also said President-Elect Barack Obama would “drive improvements” in the areas of global-health issues.

Mr. Gates met with Indian health officials and polio experts about his foundation’s efforts to help in the fight to eradicate polio and fight HIV/AIDS.