After the cordyceps brain infection outbreak around September 2013, Boston transformed from a populated, bustling city into a military controlled Quarantine Zone. Under martial law, the city is littered with checkpoints, soldiers, and body scanners to check for infection. If the scan of a person comes out positive, they are executed on the spot.
Despite the heavy military presence, a black market has emerged, where one can buy drugs, weapons, and other illegal goods. Tess and Joel run most of the smuggling into and out of Boston.
Events of The Last of UsEdit
In the events of The Last of Us, Boston is transformed into a heavily controlled military Quarantine Zone. When the infection spread across the country, the U.S. Military created this zone to secure themselves from the infected. Joel traveled all the way from Texas to Boston during the twenty years after his daughter died. Ellie was born in the Boston Quarantine zone.
After the death of Ellie's mother Anna, Marlene, Anna's close friend, took care of Ellie. Marlene later orders for Ellie to be smuggled out of the quarantine zone by Joel and Tess after finding out that Ellie was immune to infection and could potentially lead to a cure.
By the year 2033 it is one of the last intact Quarantine Zones left in the entire country; while other zones were overrun by Infected or were abandoned by the Military following civilian revolt, the Boston zone did not suffer the same fate. This may be due to the extremely tight security measures employed by the Military and an abnormally heavy level of fortification even for a Quarantine Zone. These measures include concrete walls that are 30 or more feet high with searchlight-equipped guard towers, a large "No Man's Land" which stretches a considerable distance from the walls that is routinely patrolled by soldiers, a strict 6am-6pm curfew, and an aggressive and fairly successful campaign against the Fireflies.