They wanted to punish the South, and to prevent the ruling class from continuing in power. They passed the Military Reconstruction Acts of 1867, which divided the South into five military districts and outlined how the new governments would be designed.
Klebsiella can be quite serious as it causes a variety of diseases: Liver abscess, meningitis, pneumonia, blood stream infection, urinary tract infection, septic joints, solid organ abscess, infection of the heart and valves, prostate infection...
Klebsiella organisms are resistant to multiple antibiotics. This is thought to be a plasmid-mediated property. Length of hospital stay and performance of invasive procedures are risk factors for acquisition of these strains. Treatment depends on the organ system involved.