The Gaza equivalent of "No Smoking"

Hospitals in the Western world will usually have "no smoking" signs.

In Gaza, things are a little different:

A Palestinian woman waits to receive treatment at a medical clinic run by visiting Jordanian doctors in Gaza City February 1, 2009. A large team of Jordanian medical workers arrived in Gaza last week to treat Palestinians after Israel's 22-day offensive in the Gaza Strip.

Why exactly doesn't Reuters point out why such a sign might be necessary?