Altodouro, a new Leptospira serovar of the Pomona serogroup isolated from rodents in northern Portugal

► A new virulent Leptospira strain was isolated from the house-mouse in Portugal. ► The strain was typed as Leptospira kirschneri, serogroup Pomona. ► MAbs, CAAT and REA analysis showed that the strain is a new serovar.