Qatar tightened restrictions on commercial activities on Monday, ordering all shops to close until the end of the month as part of measures to stem the spread of the novel coronavirus.
The decision taken at a cabinet meeting exempts pharmacies, food supply stores and food deliveries.
Malls and dine-in restaurants were already closed but other stores had still been operating.
The country has the second-highest infection count after larger neighbour Saudi Arabia among six Gulf Arab states. Its death toll from the virus stands at 15.
Other measures approved by the cabinet include requiring all citizens and residents to install a mobile app designed to track COVID-19 cases starting May 22, state news agency QNA reported.
No more than two people can be in a car and up to three in a chauffeured vehicle, while buses must operate at half capacity.
People can exercise in public near their residence if they practice physical distancing and wear face masks, QNA said.