THE FUTURE ON EARTHI think in the future it will be impossible to make a plane / boat / other trip to cross a border without first passing a virus test, whatever the type of virus. Each country will want to protect itself against transmission. It will be an international standard which will be adopted by all countries. So hundreds of millions of tests will be required each year for the rest of our life on earth if humans do not want to be eradicated from the earth. I would even say that each package transmitted from one country to another will first have to go through a virus destruction system.Cote101