Sample sent to Hospital for Tropical Diseases (PHE National Parasitology Reference Lab) referral laboratory for Filaria serology testing using an ELISA. A negative result does not exclude the diagnosis. This test will not detect infection with onchocerciasis which is diagnosed by demonstration of microfilariae in skin snips. A blood film to detect the microfilaria may be required if serology is positive. This needs to be taken at a particular time - please contact the laboratory for further details. This assay is available routinely Mon to Fri.
Filariasis only occurs in tropical regions. Filaria worms are transmitted by mosquitoes. Acute infection may be sub-clinical, or result in lymphangitis, rash, or eosinophilia. Lymphoedema can occur in patients with a high worm burden, which only occurs in those with a repeated filaria exposure living in an endemic country.
Synonyms or keywords:
Wuchereria bancrofti, Brugia malayi, and Brugia timori, Loa loa, Onchocerciasis