Federal employees working on mental health services, disease outbreaks and disaster preparedness were among those hit by the Trump administration’s mass firings over the weekend.

Gunfire aimed at the U.S. Centers for Disease Control and Prevention by a man authorities say was angry over COVID-19 vaccines is the latest in a string of violence and harassment directed at health care workers amid hostility lingering from the pandemic.

The man who attacked the CDC headquarters in Atlanta on Friday fired more than 180 shots into the campus and broke about 150 windows.