BY Nebraska Department of Health and Human Services | April 1, 2021 Lincoln â The Department of Health and Human Services (DHHS) has been made aware that a medical worker in the Four Corners Health District experienced a significant medical event a week after receiving their first dose of the Moderna COVID-19 vaccine. The individual is in their late 40s.  The incident will be entered into VAERS, the Vaccine Adverse Event Reporting System, a national vaccine safety surveillance program run by CDC and the FDA. Anytime a death or any adverse event occurs post vaccination, the case must be reported into VAERS. This process allows the CDC and FDA to closely monitor and assess any adverse events, for ongoing safety evaluations. As is standard protocol for any significant incident reported in VAERS it will be fully reviewed. The event occurred in late March and the individual received the vaccine in Mid-March.