Indiana fully vaccinated its first Hoosier a year ago Tuesday, on Jan. 18, 2021. But where does the state stand now?

Indiana is considering lowering its threshold for when public health agencies address elevated blood lead levels in children — based on a nearly decade-old recommendation from the Centers for Disease Control and Prevention. The agency recently changed that threshold again — and it’s unclear if the state will follow suit.

The Indiana Department of Health will expand COVID-19 vaccine eligibility to 12- to 15-year-olds starting Thursday, pending recommendation from the Advisory Committee on Immunization Practices and the Centers for Disease Control and Prevention.

New data from the CDC shows only 15 percent of Hoosiers get the recommended amount of weekly physical activity.

Scientists at the Centers for Disease Control and Prevention used a novel disease-mapping method to study how the 2015 HIV outbreak was transmitted.

The state rose seven spots in the ranking this year, from 34th to 27th. But, it still spends only 10 percent of the $73 million the CDC recommends.

Attorney General Curtis Hill, has accused the federal Centers for Disease Control and Prevention of manipulating facts in order to push a "pro-needle-exchange agenda."

The state has implemented just one of five CDC-recommended measures to prevent the spread of the disease through sharing contaminated needles.

Federal funding for Zika research is expected to run out by the end of September.

Parts of Indiana have witnessed an increasing number of heroin overdoses in recent months. The CDC says overdose deaths have increased nearly 300 percent.