Sam Gringlas

Updated at 6:25 p.m. ET

Presumptive Democratic presidential nominee Joe Biden announced on Thursday an expansive plan to restart the economy and protect public health during the ongoing coronavirus pandemic, including federally funded testing for every worker called back on the job, guaranteed paid sick leave for workers affected by COVID-19 and a federally coordinated contact tracing workforce.

Officials are stepping up their warnings to younger Americans about the coronavirus, because they can more easily spread the virus without having symptoms and now because new evidence shows the potential for some younger people to suffer severely from it.

South Carolina received approval from the Trump administration on Thursday to impose Medicaid work requirements, a move likely to trigger a challenge in federal court.

Under the new rules, most adults who qualify for Medicaid coverage will be required to prove they work at least 80 hours a month, or are doing other activities like volunteering or hunting for a job.

Pete Frates, the former Boston College baseball star whose battle with amyotrophic lateral sclerosis inspired the viral Ice Bucket Challenge and raised millions for ALS research, died Monday at age 34.

"Pete was an inspiration to so many people around the world who drew strength from his courage and resiliency," his family wrote in a statement, released by Boston College.

Missouri is within days of losing its last remaining health center that provides abortions. Unless a court intervenes, it will become the first state in the nation without such a clinic.

Planned Parenthood officials say they are filing a lawsuit in state court Tuesday, asking for a restraining order to prevent its St. Louis clinic from being forced to stop offering the procedure after a state license expires Friday.