Croupous pneumonia makes up to 7-8% of all pneumonia cases in different regions of the country. 83 lethal outcomes have been studied. In 46 cases pneumonia was primary illness and the direct cause of death. In case a pneumonia is diagnosed an urgent hospitalization and penicillin treatment (maximum effect on pneumococcus is ensured with 1.8-2.4 million units per day) are necessary. For the prevention of acute cardiovascular insufficiency camphor is prescribed for 2-3 days. Mucolytic preparations and--after normalization of temperature--physiotherapeutic methods and therapeutic exercises are used for treatment. In 25-46.6% of lethal cases pneumonia is not diagnosed in their lifetime. Late hospitalization influencing illness's outcome takes place in 73% of cases.