IRCT20200105046009N4 IRCT 2020-07-18 Babol University of Medical Sciences management of the pulmonary diseases based on Persian medicine in patients infected with COVID-19 Evaluation of the effectiveness of dietary plan for pulmonary diseases based on Persian medicine in patients infected with COVID-19 2020-06-30 anticipated 80 Complete https://irct.ir/trial/49365 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Cluster Randomization will be done. In this way, the patients' hospital rooms are considered as clusters. In the hospitals, 16 beds in 4 rooms (preferably in 4-bed rooms) are allocated for study. The process of admitting patients and assigning them to beds is completely random and no choice will be made. In the hospital, 8 beds are randomly assigned to the traditional medicine diet and 8 beds to the standard diet. The selection and assignment of rooms to the diet are random and using a random digit table. 3 Acute respiratory infection caused by COVID-19. Intervention 1: Intervention group: Diet based on the principles of Persian medicine is prepared as a weekly program in three meals and given to patients. In this diet, raw materials (including saffron, sweet pomegranate juice, etc.) are added that can help treat patients with lung infections. Patients follow the same diet until discharge. Apart from this diet, no new therapeutic interventions are performed on these patients. Intervention 2: Control group: The usual diet that is provided to all patients in Iranian hospitals will be given to these patients as usual. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information