United States will share coronavirus vaccines with other countries if it ends up with a surplus, US President Joe Biden said on Wednesday."If we have a surplus, we are going to share with the rest of the world," Biden said noting the US has already committed USD 4 billion to Covax, the United Nations program for distributing the vaccine across the world according to The Hill.Also Read | Dissecting Ola’s audacious electric dreams"This is not something that can be stopped by a fence, no matter how high you build a fence or a wall...