Acute lung injury represents the most severe form of the viral infection sustained by coronavirus disease 2019 (Covid-19) also named as SARS-CoV-2, a new virus emerged in December 2019 in Wuhan (China). The diagnosis is clinical and patients develop flu-like syndrome with fever and cough; patients with clinical symptoms can perform a swab test, including molecular and/or antigen swab, for diagnosis of positivity to Covid-19. Even if diagnosis and treatment are well described, to date, this viral pandemic infection induces an increased mortality in the world. The aim of the present project is to evaluate specific biomarkers that could be used for patient stratification and for tailor therapy in COVID-19 infected patients.

Inclusion Criteria:

• Aged between 18 and 75 years, extremes included, male or female In conscious patients, ability to understand and the willingness to sign a written informed consent document; in unconscious patients informed consent will be signed from parents or legal tutors.

Exclusion Criteria:

• Patients that don't sign the informed consent

Patients of both sexes and > 18 years with and without covid-19 infection that came in hospital for flu-like syptoms: cough fever and dyspnea