For some people, variations in a small number of genes appear to be linked to a greatly increased chance of developing the debilitating brain disorder, according to a study released Wednesday.
President Biden on Tuesday directed government agencies to take additional steps to research and treat long covid, a condition that remains often mysterious even as it has sickened millions of Americans.
Only 22.2 percent of Black adults and 29.2 percent of Hispanic and Latino adults see their usual health-care providers sharing their race or ethnicity, a survey shows.