Ms. Biden is not considered a close contact to the first couple, according to a spokesman for the first lady.
The state’s legislature is believed to be the first to pass such a measure, covering cases in which the parent of a minor is killed. It will go to the governor for his signature.
The announcement from the Justice Department came after Gina Raimondo, the commerce secretary, and Representative Katherine Clark of Massachusetts announced their own positive tests.
A Michigan school superintendent debunked the rumor after a video from a December school board meeting resurfaced in which a speaker airs concerns about students who “identify as cats.”
The fatal injury occurred when the mine’s roof fell onto equipment the miner was using, officials said. No one else was caught in the collapse.
Kuachua Brillion Xiong, 25, is being held in the Pottawattamie County Jail in Council Bluffs, Iowa, on charges of making threats against a former president.
The state became the first to outlaw the act, adding it to its civil definition of sexual battery and giving victims the ability to sue their assailants for damages.