RSS
Posts by Category
Recent Posts
- 5/15/2012
Pertussis Epidemic in Washington State - 5/10/2012
Cholera Vaccination in Haiti - 5/7/2012
Quadrivalent Flu Vaccine - 5/2/2012
Epidemiologist Benjamin Franklin - 4/30/2012
Philadelphia Study Examines Varicella and Herpes Zoster
International Health Regulations allow countries at risk for yellow fever transmission to request certificates of vaccination from foreign travelers. If a visitor is coming from a country considered “high risk” for the disease, they must present a yellow fever certificate approved by the World Health Organization–sometimes at the port of entry, and sometimes before they can even obtain a travel visa.