Just got off the phone with Delta and couldn't be happier with the customer service. We were scheduled to fly open jaw to London and Madrid next month; however, we have a family member with multiple medical issues, including a history of hospitalizations for pneumonia, so we are rescheduling our trip for when the Coronavirus situation hopefully is more understood and less risky.
Our trip does not meet any of the current change fee waiver conditions (not going to Italy, not traveling in March, etc.), but Delta waived all change fees for us given the medical issue. They asked only for contact information for a medical provider who could attest to the inadvisability of travel for my family member, but we did not need to provide any documentation. The entire phone call lasted about 10 minutes, including the process of rebooking the flights to August. I was also given the option of canceling my original flights altogether and being issued a travel voucher for the full amount, but I chose to rebook at this time.
I'm impressed.
If anyone else is out there under similar circumstances (medically not advised to travel under the current conditions) but were holding off until maybe change fees were waived for their flights, you might want to give Delta a call now.