CoVAPid2 is a multicenter retrospective observational cohort study aiming at comparing the incidence of ventilator-associated lower respiratory tract infections between COVID-19 patients from the first and the second wave of the pandemic. Patients with confirmed SARS-CoV-2 community-acquired pneumonia and receiving invasive mechanical ventilation for more than 48h in the participating ICUs from the start of COVID pandemic are eligible for this study. Consecutive patients will be included from the beginning of the first wave (starting on 01-01-2020, data already collected in the CoVAPid1 study) and the second wave (starting on 10-01-2020). 10-20 patients per wave will be included in each center. VAT and VAP are defined using clinical, radiological and quantitative microbiological criteria.
