Biological weapons warfare ( Back to War! Fatal Naegleria fowleri Meningoencephalitis, which is provoked by a pre historic 5 million years ago ameba bacteria, that incredible ressurected from defrozen areas due to climate change. It can appear naturally on all water resources.)

 

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3323261/

https://www.indiaherald.com/Breaking/Read/994555620/-Year-ZOMBIE-VIRUS-brought-to-life-by-Scientists