Many physicians throughout the United States will be faced with the problem of filariasis for the first time as several thousand servicemen have contracted the infection during the war and are now being demobilized. Not only will the individual seek treatment and counsel but the community will likewise wish to know the facts concerning possible danger of secondary transmission. It is my purpose in this paper to acquaint the doctor with some of the more salient points observed in Marines with filariasis at Klamath Falls, Oregon, where 2,595 were collected and observed during a seventeen months period.
Filariasis is an infection produced by a nematode which is transmitted only by an intermediate host. There are four varieties carried by insect vectors (mosquitoes) and one by an aquatic crustacean. The most common filarial organism and the one under discussion is known as Wuchereria bancrofti. It is prevalent in many islands in