Michael Schumacher's manager has confirmed that the former Formula 1 world champion is still in the "waking-up process" following his skiing accident.

The 45-year-old has been in a medically-induced coma since hitting his head while skiing in France in December, although doctors recently began reducing his sedation.

Sabine Kehm told reporters: "Michael's family would like to again express their sincere thanks for the continuous sympathy coming from all over the world. The good wishes they receive help the family and, we are convinced they also help Michael, who still is in a waking up process.

"As often in such situation, no day is like the next. The family is thankful for one's understanding that they would not wish to disclose medical details in order to protect Michael's privacy.

"As assured from the beginning we will continue to communicate any decisive new information on Michael's health state. We are aware that the wake up phase can take a long time."

Earlier this week, it was reported that the German has contracted a lung infection while in hospital on Grenoble.