Filariasis in an upland population in the Philippines

An epidemiological survey of filariasis was undertaken among the Mangyan villages of Mindoro, Philippines. The prevalence of microfilaremia was 10.2%. There were two foci of the disease; one in the northeast and the other in the southeast. The prevalence of lymphedema was very low. The prevalence of chronic productive cough was high and was associated with the presence of microfilaria.