4 December 2014
The bacterium Salmonella Typhi causes typhoid fever in humans, but leaves other mammals unaffected. Researchers now offer one explanation — CMAH, an enzyme that humans lack. Without this enzyme, a toxin deployed by the bacteria is much better able to bind and enter human cells, making us sick.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ThrFRCV1Ck8/141204140614.htm
