Onchocerciasis, or river blindness, is a blinding parasitic infection carried from one person to another by a biting blackfly.

This is a parasitic infection and already a nuisance on Mediterranean beaches.

Or you could catch a nasty parasitic infection - who can tell?

There is medical evidence to suggest that he was suffering from a parasitic infection of the intestine, whose effects would include irritability and loss of concentration.

Although rare, parasitic infection can cause acute appendicitis and result in contamination of the peritonea during appendectomy.