THE world should be back to normal by the end of 2022 thanks to COVID-19 vaccines, Bill Gates said in an interview for Polish newspaper Gazeta Wyborcza and television broadcaster TVN24. "This is an incredible tragedy," the Microsoft co-founder said on the pandemic, adding that the only good news was the access to vaccines. "By the end of 2022 we should be basically completely back to normal," Gates said. Gates, a billionaire who stepped down as chairman of Microsoft Corp in 2014, has through his philanthropic Bill and Melinda Gates Foundation committed at least $1.75 billion to the global response…