The Path of Transmission

The early stages of the Ebola outbreak began in the village of Meliandou, Guinea, where it spread to immediate family members and caretakers. In mid-February, a hospital worker contracted the disease and spread it to other villages. By April, the outbreak threatened a much larger population. Shown is the initial transmission chain of the current Ebola virus outbreak. Family members of those infected and health-care workers in the region are most at risk.