- Yellow fever: Colombia declares health emergency after dozens die BBC
- CDC issues level 2 travel notice for yellow fever in South America CIDRAP
- Colombia declares health emergency due to yellow fever cases, deaths The Jerusalem Post
- Yellow Fever in South America – Level 2 – Practice Enhanced Precautions – Travel Health Notices | Travelers’ Health Centers for Disease Control and Prevention (.gov)
- Yellow Fever’s Fatal Resurgence in the Americas Vax-Before-Travel