- 36 More than ever there is an urgent necessity to adopt standards guaranteeing a diversified regime, with activities and recreation. In addition, norms with respect to the provision of appropriate medical and social care should be included in the operating standards, as well as issues related to the maintenance of order and discipline. At present, no guidance is given to law enforcement officials assigned to the facilities on the measures to be taken in the event of a disturbance or breakdown in order; staff are left to improvise. Similar operating standards should be introduced for the police holding facilities. The CPT calls upon the Greek authorities to take the necessary steps to draw up and implement, as soon as possible, operating standards for both the special facilities for irregular migrants and police holding facilities, guaranteeing, inter alia, a regime offering activities and recreation. iv. health care 73. At a minimum, a person with a recognised nursing qualification must be present on a daily basis at all centres for detained irregular migrants. As stated above in paragraph 46, this was not the case at the Athens Airport and Piraeus Facilities. In contrast, the Filakio, Pagani, Petrou Ralli and Venna detention facilities had their own in-house medical service. The medical staffing complement at Filakio was still one full-time doctor and two part-time nurses, while at Petrou Ralli there was an increased presence of a doctor and at Pagani, a doctor was present on a daily basis. As concerns Venna, at the time of the visit, one full time doctor was attached to the Centre. However, the difficulties as concerns the provision of medical care flagged in the CPT’s report on its 2007 visit to Greece, appear not to have been fully resolved.58 In a letter, dated 5 August 2009, the Rodopi Police Union expressed its concern as regards the provision of medical care; notably that the nurse had not been paid for six months and that no doctor had been attached to Venna during the summer months, when the Centre was at its most crowded. The CPT has already recommended that the detention facility for irregular migrants at Athens Airport benefit from the presence of medical staff on a daily basis (cf. paragraph 46). Further, the Committee recommends that the Greek authorities take adequate measures in order to ensure regular medical care is provided at all centres where illegal migrants are held. 74. In addition to the medical care provided by the centres, medical screening of new arrivals for tuberculosis was consistently carried out in Filakio and in Pagani. At Petrou Ralli, all new arrivals were also screened for skin manifestations. At Venna, as a consequence of the absence of a doctor between 9 July and the beginning of September 2009, several newly arrived migrants had not been medically screened, which meant that persons suffering from transmissible diseases or infections were not identified. In one dormitory, the delegation met a man who had apparently been diagnosed as suffering from tuberculosis prior to coming to Greece. As this man was coughing up blood, his medical condition required an immediate medical examination, and he was transferred to hospital at the request of the delegation. 58 See CPT/ Inf (2008) 3, paragraph 36.