Presently in England to attend a family funeral, Wright was to join the Pune team for today's match against Rajasthan Royals.
"This morning for blood test! They think I may have picked up Dengue Fever in India. What ever it is I hope it goes very soon," Wright, who has undergone blood tests to check for the condition, wrote on his twitter page.
In the only match he played in the ongoing Indian Premier League, against Delhi Daredevils, Wright conceded 24 runs in two overs.
Wright was picked up by Warriors on the basis of his impressive outing with Melbourne Stars in the Big Bash and with Impi in South Africa's MiWay Twenty20 competition.