Pseudomonas aeruginosa is the most common gram-negative non fermenting bacteria in the second grade a hospital of a county. Three years of cultivation and isolation of Pseudomonas aeruginosa showed a downward trend, and some of them had high drug resistance. Strengthen the hospital infection work, improve the hospital staff's awareness of nosocomial infection control and rational use of antibiotics; strengthen the monitoring of hospital infection and drug resistance; carry out bacterial culture and drug sensitivity test on all kinds of specimens before the use of antibiotics; pay attention to the reasonable selection of antibiotics and the course of medication before the report of drug sensitivity test; reduce or avoid invasive operation and treatment as far as possible It is an important measure to prevent Pseudomonas aeruginosa infection and drug-resistant strains.<br>
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