| vh.org | Infectious Diseases of the Central Nervous System |
| sciencenews.org | Science News Online |
| polioeradication.org | Global Polio Eradication Initiative |
| pbs.org | The American Experience: Influenza 1918 |
| osd.mil | Global Emerging Infections Surveillance and Response System (DoD-GEIS) |
| genhealth.com | Parasites in Humans - How Common are Parasites |
| ccid.org | Center for Complex Infectious Diseases |
| amnh.org | Epidemic | The World Of Infectious Diseases |
| mcw.edu | Will We Be Compassionate During the Next Epidemic? |
| who.int | The Global Polio Eradication Initiative |
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