What is yellow fever, the disease for which Colombia declared a health emergency after the death of more than 30 people?

Media coverage

• Title	What is yellow fever, the disease for which Colombia declared a health emergency after the death of more than 30 people?
  Media name/outlet	CE Noticias Financieras English
  Date	22/04/25
  Persons	Zulma M. Cucunubá