Workers for the Transportation Security Administration (TSA) have been infected with the coronavirus as 26 agents, and eight non-screening agents have tested positive for the virus in the last 14 days.

According to TSA, agents at airports in Seattle; Newark, New Jersey; Nashville, Tennessee; New York; Indianapolis, Indiana; Atlanta; Orlando, Florida; Detroit; Cleveland, Ohio; Dulles, Virginia; and St. Thomas, Virgin Islands; have all tested positive for COVID-19.

TSA issued a statement about the cases, saying that many of its other agents that may have been exposed to COVID-19 have chosen to self-isolate.

The agency has also released a matrix and map with updated cases to allow travelers to know which airports they may have potentially been exposed to the coronavirus during the security screening process. The matrix lists the security terminal checkpoint location as well as the timeframe the infected TSA agent was working.

“We continue to see officers demonstrate the highest levels of professionalism and hard work as they report to duty to screen passengers and their belongings to help ensure the traveling public remains safe and secure during this challenging time,” TSA said in a statement.

TSA said that impacted security checkpoints may close as needed due to the coronavirus.