When immunization coverage drops, everyone is more vulnerable. In today's interconnected world, it's easy for an international traveler to bring back a disease like measles that can then spread in our communities—the reason for the three current outbreaks in the U.S. That's why outbreaks of infectious diseases anywhere are a threat to us everywhere.
If an infectious disease had intellect and could think like a human, it would probably strive to become the “alpha” among its peers. Its war cry would be “take no prisoners.” In other words, it would be the type of assassin that disappears without a trace after killing their victims. What disease fits this description best? I’d have to pick tuberculosis.