[Research results on sensitivity of surveillance on the infectious diseases of PSSE Zwoleń].

The aim of the paper was to evaluate sensitivity of surveillance of infectious diseases in 2005, in comparison to 2000-2004 (i.e. after taking the measures to improve notification of infectious diseases). In the first half of 2005 significant improvement was noticed, mainly in the group of diseases, which had been to be reported obligatorily since 2002 (e.g. helminthiasis). The improvement of notification and registration was short-lasting. In the second half of the year the drop of notification and registration was reported. There is a need of active and permanent monitoring of notification and registration of infectious diseases and renewed consideration of the list of diseases which are subjected to be obligatorily notified.