the earth of its resources. >> we are seen full entire ecologies that you can see with your eyes and which you only can see with the microscope. >> one system after another completely reshaped. in every case, this affords opportunities for viruses and bacteria to seek out new homes and causing new havoc including disease for human beings. >> when contagious, life alters in an instant. you don't feel safe. we lose trust. >> it spreads really quickly when you have an infectious disease. >> it is happening so fast and so much vividly ever before.