Meyer P W, Lerman S J
Antimicrob Agents Chemother. 1980 Jan;17(1):101-2. doi: 10.1128/AAC.17.1.101.
Ampicillin resistance of shigellae first appeared in Omaha in 1971, peaked at 68% between 1973 and 1974, and declined to 7% between 1977 and 1978. This reflected the rise and fall of strains with nine different multiple antibiotic resistance patterns that included ampicillin.
志贺氏菌对氨苄西林的耐药性于1971年首次出现在奥马哈，在1973年至1974年间达到68%的峰值，1977年至1978年间降至7%。这反映了包括氨苄西林在内的具有九种不同多重耐药模式的菌株的兴衰。
