inclusion criteria: - adult intensive care patient admit in acute respiratory distress needing intubation with suspicion of under the ct scan of covid 19 confirmed by positive antigen or pcr technology-patient covid type l (criteria gattinoni -ct scan )

inclusion criteria: - adult intensive care patient admit in acute respiratory distress needing intubation with suspicion of under the ct scan of covid 19 confirmed by positive antigen or pcr technology-patient covid type l (criteria gattinoni -ct scan )