LOS ANGELES (CBS) — Reality TV star Jack Osbourne has been diagnosed with Multiple Sclerosis.

Jack, the son of Ozzy and Sharon Osbourne, first told Hello and People magazines about his disease in order to raise awareness.

Osbourne, 26, was diagnosed just two weeks after the birth of this first daughter in April.

Multiple Sclerosis is an incurable disease that attacks the brain and spinal cord.

“Thank you all so much for the kind and inspirational words. It means a lot,” Osbourne tweeted Sunday.