The USCIS has indicate that there will be nopenalty for rescheduling appointments due toillness because of the COVID-19 outbreak. 

If you become ill for any reason, even if you werenot exposed to COVID-19, USCIS advises that you do not attend your appointmentat a USCIS office. You should follow the instructions on your USCIS appointmentnotice to reschedule an appointment with the USCIS. 

You shouldreschedule your USCIS appointment if you:
  • Were in anycountry designated as a “level 3” by the Centers for Disease Controland Prevention (CDC) within 14 days of your appointment;
  • Believe thatyou may have been exposed to COVID-19 (even if you were not in a level 3 country);
  • Areexperiencing flu-like symptoms (such as a runny nose, headache, cough, sorethroat or fever). 
USCIS wantsto ensure the safety of foreign nationals and USCIS employees.  There is no penalty if you reschedule yourappointment at this time.