Microbial Forensics of a Natural Pneumonic Plague Outbreak

Applications of network theory for a plague outbreak:

Contagions

For bioterrorism agents like Yersinia pestis it is necessary to identify the strain and its source specifically enough for forensic use. Categorizing an epidemic isolate and tracing its source is always important for public health measures, but the level of precision is far higher for legal uses. Developing forensic techniques to characterize and parse very similar strains of a species and trace it to a specific location robs terrorists (and states) of the ability to deny responsibility for an attack (Koblentz & Tucker, 2010). The ability to launch a secret and deniable attack on an enemy has been viewed as one of attractive advantages of biological warfare.

A Chinese group led by Ruifu Yang and Yujun Cui recognized that only whole genome sequencing could adequately parse the strains of the monomorphic species Yersinia pestis but that the computing power necessary to compare entire genomic sequences as the database enlarges is…

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