 Adult worms are long and slender with a smooth cuticle and bluntly rounded ends. Their head is slightly swollen and bears two circles of well-defined papillae. Males are about 4cm long and 100µm wide. Females are 6 to 10cm long and 300µm wide. Microfilaria of W. bancrofti

 Asymptomatic phase  Inflammatory (acute) phase › Fever, chills, skin infections, painful lymph nodes, tender skin  Obstructive (chronic) phase › Lymph varices, lymph scrotum, hydrocele, chyluria, elephantiasis

 Diagnosis: › Blood smears, PCR, ultrasonography, X-rays  Treatment: › Cleansing the skin, surgery, drugs (DEC, ivermecting, albendazole)

 Insect repellents, mosquito nets, education  Sri Lanka has eradicated this disease as of April, 2011

 Morphology: › Males are mm long and 70-80µm wide. › Females are mm long and µm wide.  Life cycle  Pathology  Diagnosis/Treatment  Control › Mosquito eradication and herbicides