Original sentence: In 2009, the Trust was censured by the Care Quality Commission after inspection of an ambulance depot and seven of its 100 ambulance stations found patient-carrying vehicles were "dirty" and that staff were "unsure of basic measures for infection prevention and control".The service launched an "urgent and comprehensive review" of its ambulance cleaning programme and reiterated its stance on patient safety, adding that "ensuring consistent high standards of cleanliness is a challenge" with so many stations, covering six counties and an area of 7,500 square-miles