His younger brother has mutism and cannot speak.

My younger sister is suffering from candidiasis.

She was told by her doctor to follow a special diet because of her pica.

His grandfather is suffering from dementia.

He was afraid of getting infected with brucellosis from cows.

He was smiling as if he was in a state of euphoria.

He was infected with anthrax.

He got decompression sickness after diving.

He always thinks he is sick because of his hypochondria.

He is suffering from peasant syndrome.