Harvard researchers who rely on federal grants to study cancer, infectious diseases, and a range of other topics began receiving termination notices en masse on Thursday from a number of federal agencies.

Julia Marcus, a Harvard infectious disease epidemiologist and associate professor at Harvard Medical School, is one of them. She had three federal grants related to PrEP, a revolutionary medication that can reduce someone’s risk of contracting HIV, canceled in March.

The Trump administration is targeting the Ivy League university under a law typically used to go after government contractors for swindling.

A Russian Harvard University Medical School researcher held in U.S. Immigration and Customs Enforcement custody since February has been arrested and charged with smuggling biological material into the United States.

A Russian researcher at Harvard Medical School who has been detained by US immigration authorities since February was charged with illegally smuggling frog embryos in her luggage on a plane flight.