With the outbreak of COVID19, acute lung injury has been detected as the main etiology for intensive care admission and high mortality rate. Among the infected population, there is some percentage of those who tend to develop acute respiratory distress syndrome and respiratory failure. Thus, the intensivist and anesthesiologist must be aware of the of incidence rate of ARDS, risk factors, and try to take measures to reduce its incidence. To define the rate of incidence of acute lung injury and

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... RDS among COVID 19 patient. Methods: We performed a narrative review via searching in three databases PubMed, Google Scholar and Embase for all studies that mentioned the incidence of acute lung injury among infected patients with COVID19, manual searching also completed. All the selected reviews were limited to the English language and data also. Results: Five searches referred to the exact number of patients and the percentage rate of incidence of ARDS related to COVID 19 infection, other articles are merely reviews and case reports. Conclusion: Incidence of acute lung injury among COVID19 patient was highly reported, and some percentage of these cases tend to develop ARDS especially in those who have preexisting diseases and obesity.