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Strongyloidiasis
Diagnostic Strategies
  1. To detect infections in endemic areas
    In many areas, strongyloidiasis and filarial infections are co-endemic. Therefore serological tests with low specificities cannot be used. Diagnosis relies on stool examinations.
     
  2. To detect an infection in a returning traveller
    The rather low sensitivity of microscopic diagnosis asks for alternative diagnostic tests. So far, serology is an option, since co-infections with filariae are unlikely.
     
  3. To monitor success of drug treatment
    Besides blood eosinophilia (if demonstrable before infection), the follow-up of serological titres might indicate the outcome of drug therapy. Serology should be done not before 9–12 months after start of therapy. A declining titre can be interpreted as sign of a cure.