Delta variant cause for concern among unvaccinated people, according to doctors

A COVID-19 variant first sequenced in India has doctors on high alert. According to health experts, the Delta variant is much more contagious than the conventional virus strain we've dealt with for the past year. California's Department of Public Health says, so far, fewer than 350 cases of the emerging strain have been sequenced in the state, but the variant is gaining a foothold in the United States.