The opera singer Dmitry Khvorostovsky has to cancel his concert due to another course of chemotherapy.

      The news about such recommendations by doctors has come like a bolt from the blue for the singer's admirers.

      Dmitry Khvorostovsky returned to work last autumn after a long-term course of brain cancer treatment in the London clinic of Royal Marsden.

      The singer reported the news about the prescribed chemotherapy course on his Facebook page, pointing out that he has to be admitted to clinic and thus cancel his participation in Simone Bacconegr in the Vienna Opera.

      "I am optimistic and look forward to the forthcoming concerts in Germany and not only", - Dmitry Khvorostovsky wrote, having thanked his fans and friends for love, kind wishes and positive vibrations.