There are many ways of classifying bacteria. One method is based on the cell membrane. In 1884, a bacteriologist named Christian Gram created a test that could determine if a bacterium had a thick, ...

The Journal of Infectious Diseases, Vol. 139, No. 6 (Jun., 1979), pp. 667-673 (7 pages) Factors that promote oropharyngeal colonization of seriously ill patients with gramnegative bacilli are as yet ...

A comparison of aztreonam and tobramycin was carried out in 49 hospitalized patients with lower respiratory tract infections caused by gram-negative bacilli. Patients were randomly assigned to the ...

Nine species (240 strains) of gram-negative bacilli were studied; 221 were freshly isolated from the urinary and intestinal tracts, wounds and abscesses. Thirteen strains of salmonella and 6 of ...