Gregory Shwartzman described the phenomenon of local skin reactivity to culture filtrates of meningococci and of other gram-negative bacteria ... in part by a United States Public Health Service ...

Relationship between fluoroquinolone use and changes in susceptibility to fluoroquinolones of selected pathogens in 10 United States ... of gram-negative isolates to ciprofloxacin in a hospital ...

These organisms are highly efficient at up-regulating or acquiring genes that code for mechanisms of antibiotic drug resistance ... ICUs in the United States are due to gram-negative organisms ...