The study also examined the morphology of the bacteria during space flight and found changes that indicate the formation of a biofilm, which was not observed in the samples grown on Earth. Biofilms are associated with increased virulence of bacteria.
Biofilm sounds kind of SCIFI all by itself. The bacteria grew a biofilm in space that didn't exist on Earth? Ick.
After about three weeks, 40 percent of mice fed the salmonella from Earth were still alive while only 10 percent of those given the bacteria from space survived, according to the study.
It sucks to be a mouse. Even the winners lose.
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