Dr. Charlie Weller is head of vaccines at the global charitable foundation Wellcome. We interviewed her as part of our #PassTheMic series. Here’s some of what she had to say. With a disease like COVID-19, it doesn’t see borders. It doesn’t see different countries or types of people. In 2019, no one knew anything about COVID, so these types of diseases really need a global solution. We’re seeing the amazing progress that certain countries are making, like Australia and New Zealand,...