| the changing aetiology of eosinophilia in migrants and returning travellers in the hospital for tropical diseases, london 2002-2015: an observational study. | determining the cause of eosinophilia in patients returning from the tropics continues to present a diagnostic challenge. the history, symptoms and degree of eosinophilia are often poor predictors of eventual diagnosis, but helminths are an important cause. the current british infection association recommendations use travel history to guide investigation of eosinophilia. however the global burden of helminth disease and travel patterns have changed over the last 3 decades and guidelines based o ... | 2017 | 28842188 |