During these times of crisis, countries, regions and cities across the European Union are stretching out a helping hand to fellow EU citizens and assistance is being given to those most in need: donations of protective equipment such as masks, medical teams, cross-border treatments of ill patients and bringing stranded EU citizens home. 

Upon request, the European Commission coordinates assistance to respond to the coronavirus, such as to coordinate the delivery of personal protective material, repatriation flights from outside Europe, and co-finances the delivery of assistance and the transport of medical teams from one country to another.

With its Emergency Response Coordination Centre, the Commission stands ready 24/7 to assist all countries, in Europe and beyond, who ask for specific support.

This is the overview: https://ec.europa.eu/info/live-work-travel-eu/health/coronavirus-response/crisis-management-and-solidarity_en#assistance-within-the-eu