New government data shows another decline in sexually transmitted disease rates for U.S. adults, but also a continued rise in syphilis in newborns.

U.S. public health officials have been told to stop working with the World Health Organization, effective immediately.

There's some good news about sexually-transmitted diseases in newly released U.S. health data.

Amusement parks also will be permitted to reopen in counties that have fallen from the state's purple tier — the most restrictive — to the red tier. The move followed a week of milestones, with California ramping up vaccinations for the poorest neighborhoods, counties reopening more businesses and Gov. Outdoor sports will be limited to 100 people in the purple tier but will increase up to 67% in the yellow tier. Teams and event organizers can only sell tickets regionally in the purple tier. No concessions will be allowed in the purple tier, while in others, concession sales will only be available at seats.