Members of the World Health Organization came together on a critical agreement that outlines how members would react to pandemics after the COVID-19 outbreak.

The coronavirus pandemic is killing mostly older adults with underlying health conditions. As of Wednesday, there are more than 120,000 confirmed cases of COVID-19 in 114 countries, with 4,373 deaths.

Five years ago today, the World Health Organization declared COVID-19 a pandemic. Two days later, President Trump declared a national emergency.

World Health Organization leaders at a press briefing on COVID-19, held on March 6 at WHO headquarters in Geneva. Here's a look at its history, its mission and its role in the current crisis.