As a result, he will not be fully fit when the third round of the championship gets underway in Aragon this weekend.
De Puniet has already endured a tough start to the season as he suffered an injury prior to the season-opener in Phillip Island and had bike troubles in Thailand.
"Unfortunately I am not at 100%, as I had wished to be, after falling ill with a fever in Thailand which is still affecting me, but I am hoping to feel better ready for the race weekend," he said during a press conference.
"We have not had much luck so far this year, so I am hoping to start my season again, we have two days testing at Calafat which will be good training for me just a week before the event, so I'm confident and will give my best for the weekend's two races."
However, despite his illness, de Puniet is looking forward to racing on the amended circuit in Aragon since he will have a slight advantage over a majority of the other riders.
"We have two important races coming up back-to-back, but I think they can be two good races for us," he said. "I know the Aragon track well from my MotoGP career, and I really enjoy the circuit. This year the SBK Championship is using the final corner layout as used in GP so for me this is good as I have experience of this layout and I don't need to learn anything."