Eastern Equine Encephalitis may be brewing in the bog near you. Should you worry?
Grape varieties from North America seemed harmless to French winemakers. But destructive bugs were imported with the plants.
In 1803, nearly two dozen orphan boys endured long voyages and physical discomfort to transport the smallpox vaccine to Spain's colonies.
Four major theories of disease transmission dominated scientific discourse in the nineteenth century. As one scholar writes, all were political.