[Code dark grey in hospitals: short hospital admission and high mortality due to COVID-19].

During the COVID-19 pandemic, we have experienced several waves in which the number of hospital beds occupied by patients with COVID-19 has varied greatly. In December 2022, hospitals were under a tremendous pressure, and were forced to upgrade their capacity to phase 2D ("Code Dark Grey"). This is the last phase prior to phase 3 ("Code Black"), in which we would be unable to treat all patients and would be forced to triage based on medical and non-medical characteristics of the patients.

[We still have to continue to test, test, test].

Testing for COVID-19 is performed curatively for disease detection and as screening tool to prevent spread for public health and infection prevention. Testing for access is an important additional measure to provide information about asymptomatic or pre-symptomatic infection. In a recent meta-analysis 42.