[AfricaFocus] Editor's Note: "COVID-19 is just one example of the rising trend of diseases - from Ebola to MERS to West Nile and Rift Valley fevers - caused by viruses that have jumped from animal hosts into the human population. ... The rising trend in zoonotic diseases is driven by the degradation of our natural environment - through land degradation, wildlife exploitation, resource extraction, climate change, and other stresses." - Press release from UN Environment Programme (UNEP) and International Livestock Re
