By Tony Owusu Bill Gates has invested big in vaccines and those investments have paid off well by his own account. Bill Gates has had pandemics on his mind for a while now. The Bill and Melinda Gates Foundation said it would commit $10 billion over the next decade to foster research and deliver vaccines for the world’s poorest countries, with Gates saying that “We must make this the decade of vaccines.” Despite not having any medical training, Gates has used his money and the influence of the Foundation to become one of the global thought leaders on communicable diseases. In early 2019, Gates …