610817 external_news 1536070530 1536071136 A new study found that the severity of anthrax may be related to how many copies of plasmids a strain carries. Plasmids are responsible for producing the toxin. Konstantinos "Kostas" Konstantinidis, who has a joint appointment in the School of Biological Sciences and School of Civil and Environmental Engineering, says that the research could also provide clues about the severity of other organisms.

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