Anthrax Vaccines
Effects of storage on plasmid stability in Bacillus anthracis are reported
Published in Medical Letter on the CDC and FDA, March 5th, 2006
According to a study from the United States, "The plasmid profiles of 619 cultures of Bacillus anthracis which had been isolated and stored between 1954 and 1989 were analyzed using the Laboratory Response Network real-time PCR assay targeting a chromosomal marker and both virulence plasmids (pXO1 and pXO2)."
"The cultures were stored at ambient temperature on tryptic soy agar slants overlaid with mineral oil. When data were stratified by decade, there was a decreasing...
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