Just six months after the United Nations issued a statement about the world’s worst cholera outbreak, the number of cases in Yemen has reached 1 million.

When the UN warned that Yemen was facing this cholera outbreak back in June, the number of cases had reached 200,000 in two months.

Not only has that number increased by another 800,000 cases, but the death toll has reached 2,227.

Shocking: 1 million suspected #cholera cases in #Yemenpic.twitter.com/0lCMRsxps1

— ICRC Yemen (@ICRC_ye) December 21, 2017

Take Action: Join The Lumineers in Calling On Businesses to Support Clean Water and Toilets

Cholera is a diarrheal illness that spreads easily through contaminated water.

Clean drinking water has become harder to find in Yemen as the civil war wages on. The cholera outbreak could still worsen if access to healthcare and sanitation systems continues to be a problem.

The World Health Organization reported that 16.4 million people in 215 districts across Yemen do not have adequate access to healthcare. Of them, 9.3 million are in dire need, according to the 2018 Humanitarian Needs Overview.

As of today, the number of suspected #cholera cases is just below 1 million (998,315 cases and 2,227 associated deaths). #Yemenpic.twitter.com/kAl5d5vvff

— WHO Yemen (@WHOYemen) December 21, 2017

Read More: Yemen Is Experiencing the Worst Single-Year Cholera Crisis in History

Yemen’s civil war broke out in 2015 and has left millions on the brink of famine, or else facing other severe health problems.

“More than 80% of the population lack food, fuel, clean water and access to health care,” the International Committee of the Red Cross tweeted.

Global Citizen campaigns on access to safe drinking water and sanitation for all people, especially in times of crisis. You can take action here.