1. Controlling the spread of COVID-19 at ground crossings: interim guidance, May 2020;World Health Organization,2020
2. Handbook for public health capacity-building at ground crossings and cross-border collaboration;World Health Organization,2020
3. What is Anthrax?;Centers for Disease Control and Prevention,2020
4. How to Prevent Anthrax;Centers for Disease Control and Prevention,2020
5. Ending Cholera: A Global Roadmap to 2030;Global Task Force on Cholera Control,2017