By Mark Esposito, Weekend Contributor
Bespectacled Juan Maeso led a fairly mundane life as an anesthetist in the Spanish coastal town of Valencia. All that changed in 2007 when Maeso was convicted of serial murder. A morphine addict, Maeso had been skimming the painkiller meant for his patients and then using the same compromised needle to inject them. Over a decade, 275 patients contracted hepatitis-c (HCV) and four of them died from complications from the disease. A Spanish court sentenced Maeso to 1,933 years in prison but the sentence pales in interest to how the murderous soporifist was finally caught.
A fascinating article in the journal Nature details the laboratory hunt for the killer with all the twists and turns of an Arthur Conan Doyle story. Led by researchers at the University of Valencia, the work involved analyzing and categorizing 4200 viral sequences to backtrack to Maeso’s particular strain of hepatitis-c. The process known as phylogenetic forensics has been successfully used to track down the origins of such infamous cases as the 2009 anthrax-laced heroine scare in Europe and the case of Bruce Ivins, a microbiologist at the US Army Medical Research Institute, strongly suspected of sending anthrax tainted letters to Senators in 2001. Ivins committed suicide before charges were placed.
Continue reading “Phylogenetics: Finding The Smoking Genome”
