Hopefully you are virus free before you enter the gym. Do not want to share everything (germs) with others. Hate when people are always blowing their nose or coughing all over the equipment. Seen that happen a bit.
Consider a light full body workout. Might want to keep 'light' SS's in mind to really get the blood and mood for training started. But nothing to the extreme, just take it easy at first. Do not force your workout pace. Next Monday you may want to start with 75% of your regular workout load to get a feel of how your body feels. If back to normal, than let the following workout up the intensity to 100%. Good Luck.