The characters and systematic position of Morgan's bacillus

The Biochemical and Serological Relationships of the Organisms of the GenusProteus

“…Levine et al (1925), Rauss (1936), and others had reported P. morganii as producing hydrogen sulphide. Sevin and Battiaux (1939) observed only slight blackening on lead acetate with some strains in 4 to 6 days, whereas other strains showed no blackening. The discrepancy between our findings and those cited above is probably due to the fact that only definite blackening with diffusion into the medium was called a positive reaction in this work.…”

The typing of Morganella morgani by bacteriocin production and sensitivity

“…morgani has been isolated from blood, sputum and wounds (Braunstein and Tomasulo, 1978) and is occasionally the cause of urinary tract infections (Sevin and Buttiaux, 1939;Marier et al, 1978) though less frequently than P. mirabilis (McMillan, 1972;Senior, 1979) because of its slower growth rate and inability to make urine alkaline rapidly (Senior, 1983), the organism has often been regarded as only a harmless opportunistic pathogen. However, recent reports that M .…”

O antigen grouping of Morganella morganii (Proteus morganii) by slide agglutination

“…Moreover, antisera presumed to contain antibody against rough determinants (012, 021, 025, 027, 033, 036ab, 041) agglutinated isolates belonging to several different 0 groups. Ten 0 groups (7,8,13,14,29,30,32,34,40, 41) were defined on the basis of single 0 types. Neither the type strains nor the isolates in these groups had relations with other types.…”

“…The first isolates were cultured by Morgan in 1906 from infants suffering from diarrhea (7). In 1939, Sevin and Buttiaux showed that this species can also cause urinary tract infections (13). More recently, low rates of isolation from feces, urine, and other pathological materials have been reported in hospitals (14,16).…”