Today, this plague is known as the Bubonic Plague, or the Black Death. These operations caused epidemic plague outbreaks. The war resulted in famine, which was worsened by an outbreak of bubonic plague. A plague doctor was a medical physician who treated victims of the bubonic plague. Several classes of antibiotics are effective in treating bubonic plague. Barbarian invasions came in the wake of civil war, plague, and famine. Like other towns Andover suffered from outbreaks of plague. In more modern times, these diseases still plague Native American populations. The convention covers cases of Asiatic cholera, oriental plague and yellow fever. In 430 BC an outbreak of a plague hit Athens. The afflicted are segregated from the main camp in plague tents. People who have had contact with anyone infected by pneumonic plague are given prophylactic antibiotics. Typically the annual plague outbreak peaks in December and runs until April. The forty-day quarantine proved to be an effective formula for handling outbreaks of the plague. Smoking was believed to protect against illness, particularly the plague.