Fevers of hot climates.

The febrile patient from the tropics is generally, but not invariably, suffering from an infection which need not necessarily be exotic although this possibility must be excluded. In acute infections malaria must always be considered, as its diagnosis and treatment are easy and effective. A positive diagnosis of an exotic infection can only be made if a history of long or short residence in a tropical or subtropical area is obtained. In most patients a diagnosis is readily established.