Approach to Travel-Related Eosinophilia

Eosinophilia is far more frequent among travelers than in the general population. In contrast to eosinophilia in the general population, among whom atopic diseases account for the majority of cases, helminthic diseases probably account for most cases of travel-associated eosinophilia. All current diagnostic tools have significant limitations in the diagnosis of an acute helminthic infection. However, an algorithmic approach, coupled with empirical anthelminthic drugs in unexplained cases, appears to cure most travelers with post-travel eosinophilia.