输入一段英文短文，要求从中提炼出关键字。

The outbreak of COVID-19 has disrupted the global economy and changed the way people live and work. Many businesses around the world have been forced to close or downsize, and millions of people have lost their jobs. Governments and organizations are implementing measures to mitigate the effects of the pandemic, such as providing financial assistance and increasing healthcare capacity. In addition, the COVID-19 vaccine has been developed, giving hope for a return to normalcy.
COVID-19, outbreak, global economy, businesses, close, downsize, jobs, governments, organizations, measures, financial assistance, healthcare capacity, vaccine, normalcy.