India, despite their illness problems, still managed to take Tuesday's series opener into the last over before South Africa, thanks mainly to captain Jacques Kallis's 91 not out, won by four wickets with three balls to spare.
Wicket-keeper batsman Mahendra Singh Dhoni, the first to fall ill, fast bowler Shanthakumaran Sreesanth and medium-pacer Ajit Agarkar, all of whom were among the worst affected, missed that match.
But off-spinner Ramesh Powar and left-arm fast bowler Rudra Pratap Singh did take the field as India raised an XI.
Meanwhile Dravid, who made 74 in a stand of 158 with Sachin Tendulkar (99), did his best to lead from the front in a side where he said he himself, batsman Yuvraj Singh and left-arm quick Zaheer Khan were all "feeling a bit down".
Replacement seamers Ishant Sharma, 18, who has played one Test, and uncapped seamer Ranadeb Bose, who had both been scheduled to join the Test party later on the tour, were due to arrive in Belfast on Wednesday with a view to being available for selection for Friday's match.
Uncapped 28-year-old Baroda pace bowler Rakesh Patel, who has been playing club cricket in Liverpool, north-west England, was called up to India's one-day squad on Monday.
"The two quicks are quite bad, both Sreesanth and Agarkar. Dhoni should be okay for the next game but with the 'flu you never know," said Dravid.
"With Ishant Sharma and Ranadeb Bose landing on Wednesday, we'll hopefully have some cover in the fast bowling department but, then again, they would be off a flight straight away and into a game.
"It's going to be a tricky one for us."
India's one-day series with South Africa concludes at Stormont on Sunday. They then play Pakistan in a one-day international in Glasgow on July 3.
But the bulk of India's United Kingdom tour sees them facing England in three Tests and seven one-day internationals from July 19-September 8.