Illness prevented five of India's players practicing ahead of the second ODI against England in Bristol on Friday.
Sachin Tendulkar and Agit Agarkar left Thursday's net session shortly after arriving, while Rudra Pratap Singh, Yuvraj Singh and Zaheer Khan were all confined to the team hotel.
The quintet are all suffering from fever and aching limbs, although team spokesman Rajeev Shukla said none are doubtful for Friday.
"No-one is seriously ill," Shukla told the AFP. "They were suffering from a slight fever and, as a precautionary measure, were told to rest."
"They should all be available for selection."
Rahul Dravid's men are hoping to improve after losing the series-opener by 104 runs at the Rose Bowl on Tuesday.
Friday's day-nighter in Bristol is the second of a seven-match series, all of which are being screened live on Sky Sports.