Résumé
This chapter presents information on the distribution of loiasis and factors explaining variations in prevalence levels. Data on the cases reported from areas outside the classical distribution area and the relationships between human and simian loiasis are also provided. The relationships between entomological, parasitological, clinical, and serological indicators are summarized. Aspects concerning the burden of loiasis in terms of morbidity, mortality, and economic impact, as well as the impact of post-ivermectin serious side effects on onchocerciasis and lymphatic filariasis control programs are discussed.