The incidence of Kaposi's sarcoma was estimated in the Veneto Region, Italy (age ≥50; 1990-96). Rates were higher in the coast and alpine valleys; in the latter there was an excess of cases for both sexes combined (SIR = 191.1; CI = 113.2-302.0). The hypothesis that birthplace/residency in areas abundant with bloodsucking insects may be a risk factor is discussed.
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