- Typhoon Yolanda caused widespread destruction in parts of the Philippines in November 2013, overwhelming local response capabilities. Over 6,000 people were killed.
- The DOH and local health teams responded by providing medical care, public health services, and logistics support. Over 34,000 patients were served by deployed health teams.
- The response highlighted gaps in preparedness for disasters of this scale. The DOH is working to strengthen policies, plans, logistics, and health infrastructure to handle "mega disasters" in the future.