Tibor Sedlák, Eva Lalciková, Peter Jackuliak, Miroslav Mikulecký, Juraj Payer
Toxocariasis belongs to diseases in Slovakia with low annual incidence. Despite this fact it is still an actually threatening disease. The infection itself can remain latent and the larvae can outlast in tissues even 10 years. Clinical signs are mostly non-specific, as well as the results of common laboratory and imaging methods. Therefore, mainly the case history information are leading us to proper diagnosis. The determination of IgG antibodies against the TES antigen is essential, avidity of these antibodies is usefull in differentiating between an acute or chronic infection. The importance of preventive arrangements rises with a relatively high probability of a reinfection. Authors describe a case report of recurrent toxocariasis in a patient treated with antihelmintic drugs in the past. This patient was repeatedly examined because of complaints similar to those present in time of the primary infection. We conclude, due to the positivity of IgG antibodies with high avidity, that a chronic infection with reactivation of the disease was present.