In remote countries, leptospirosis confirmation is difficult because it requires the shipment of frozen samples to reference laboratories. The sensitivity of leptospirosis real-time PCR performed on filter paper-dried serum samples stored at ambient temperature was evaluated at 2 ؋ 10 2 equivalent leptospires/ml (eqLeptospires/ml). This easy alternative procedure can be used to enhance the surveillance of leptospirosis.