Published online by Cambridge University Press: 15 May 2009
This paper deals with a micro-organism recovered from human blood in a case of a typhoid-like infection. No evidence could be produced of either typhoid or paratyphoid bacilli being the cause. Only one germ was recovered from blood cultures on two occasions, it was strongly agglutinated by the patient's serum, suggesting that it probably produced a true infection in man. This study was undertaken because certain features of the organism may lead to a faulty diagnosis of paratyphoid. The author deems it a new species in the light of the tests he applied and refers it to the genus Proteus Hauser (emend. Amer. Comm.) under the name Pr. pseudovaleriae.