The first Danish cases of Shewanella alga bacteremia in two patients w
ith chronic lower leg ulcers are reported. Both patients were admitted
to the hospital during the same month of a very warm summer and had b
een exposed to the same marine environment, thereby suggesting the sam
e source of infection. Both patients survived; however, one of them ha
d extensive myonecrosis, while the other patient had an uncomplicated
course. The strains were initially believed to be Shewanella putrefaci
ens on the basis of key characteristics and results of the API 20NE id
entification system (bioMerieux, Marcy l'Etoile, France), but further
genetic and physiological analyses identified them as Shewanella alga.