For years scientists have puzzled over why the intracellular pathogen Salmonella is able to survive — and thrive — in human and animal tissues, even within otherwise hostile cells that are part of the ...

The biological pathogen federal authorities accuse two Chinese nationals of smuggling into the U.S. was not likely an act of "agroterrorism," according to experts.

Next, the team stitched together these fragments and carried out de novo assembly of the ancient X. fastidiosa genome. Using computational phylogenetic tools, the researchers compared the historical ...