A family cluster of tularemia is described. In a family of three members different clinical type of the disease occurred after having been exposed to a sick wild hare. From the hare kidney Francisella tularensis type 1 was isolated. Pneumonic, typhoid-like tularemia occurred in the father who inhaled hare skin hairs and an ulceroglandular form in the mother and in the child who had direct contact with the animal.