. (Tribune News Service) — A Southwest Airlines flight attendant has filed a wrongful death lawsuit against the airline, alleging that lax COVID-19 protocols during mandatory training last summer, and slack contact tracing after an attendee tested positive, led to her husband's death from the virus. Carol Madden, a 69-year-old Baltimore-based flight attendant who has worked for Southwest since 2016, is seeking more than $3 million in damages for what the lawsuit says was the airline's negligence, according to the suit filed in U.S. District Court in Maryland. She and her husband, Bill, a veteran and retired railroad signal engineer who drove her home from the one-day training session at Baltimore-Washington International Airport in July, got sick days after the training and eventually tested positive for COVID-19. Bill's oxygen levels plunged, and his health deteriorated so rapidly that he couldn't take his own temperature. He died a few weeks later in a York, Pennsylvania, hospital, with COVID pneumonia listed as the first cause of death. He was 73.