I have had 3 Remicade infusions and for two of them, when I went in, I had a low-grade fever. The first time the nurse called my doctor and spoke to the pharmacist and they decided to move ahead with the infusion. The second time I had a fever, my GI was out and the pharmacist said to go ahead anyhow so they did.
I am with the others on here--I would rather have the Remicade while not feeling too great then pay the consequences of waiting for the infusion.