[Behavior of lactate dehydrogenase in typhoid infection]

The study of LDH in typhoid infection showed that its increases sharply and constantly in the first week of the disease before falling and returning to normal in the fourth week and later. The increase of LDH in the circulation depends above all on cell necrosis in intestinal lymphatic tissue, which is particularly marked at the beginning of the disease. In other salmonellosis conditions, variations are less evident and significant.