Black Death Plague Bacterium becomes non-fatal thanks to only one genetic tweak
Black strike kills millions less fatal because of this genetic tweak Reduced copies of a bubonic bump of bacterium, Yersinia Pestis; it is made less fatal but may be more acceptable by Rachel Fielduse & Magazine in nature Scan electronic micropre Yersinia Pestiwhich causes the plague stroke, with proven spines in a xenopsylla cheopis flea….