South Korea is in final talks with global drugmakers including Pfizer Inc over potential coronavirus vaccines as it seeks to secure supplies to cover 60% of its population this year, health authorities said on Thursday. The government has allotted 172 billion won ($154 million) to purchase an initial 60 million doses to fend off persistent COVID-19 outbreaks that have pummelled Asia's fourth-largest economy and upended daily life for its 52 million people. This week, Pfizer said its experimental COVID-19 vaccine was more than 90% effective amid a hastened global race to contain the pandemic which has killed more than 1 million people since it emerged in China late last year.