Shigella infections are usually restricted to the intestine. There are
few reports of Shigella isolated from the blood and most of these are
from children, usually in neonates and the malnourished. In the small
number of adult cases of Shigella bacteraemia which have been reporte
d, there appears to be an association with underlying disease and immu
nosuppression including acquired immunodeficiency syndrome. We report
three adult cases in which Shigella were isolated from blood. Two of t
hese patients made an uneventful recovery whilst the third died. An un
derlying cause of immunosuppression was suspected in this patient but
unproven.