What are closed ghettos in the holocaust?

Answer 1

Closed Ghettos were closed off by walls, or by fences with barbed wire. The German authorities compelled Jews living in the surrounding areas to move into the closed ghetto, thus exacerbating the extremely crowded and unsanitary conditions. Starvation, chronic shortages, severe winter weather, inadequate and unheated housing, and the absence of adequate municipal services led to repeated outbreaks of epidemics and to a high mortality rate. Most ghettos were of this type.