Sars-Cov2 has been found in the digestive tract, as well as the respiratory tract. Protection of health care workers during surgery has been increased and some guidelines advocate for abandoning laparoscopy in COVID19 patients for fear of contamination, evenghtough this does not benefit the patient. However, Sars-Cov2 contamination risk during visceral surgery remains unknown. Inadequate protection is unnecessary costful and can be inefficient if too binding. Our hypotheses are that 1) Sars-Cov 2 can travel through droplet and air during visceral surgery. 2) Laparoscopy, because of the pneumoperitoneum and its leaks, warrant more air contamination whereas laparotomy warrant more droplet contamination, which would justified increased protection.

Inclusion Criteria:

• Documented Sars-Cov2 infection (nasopharyngeal swab, tracheal sampling, thoracic CT, serology)
• Need of visceral surgery (laparoscopy or laparotomy)
• Signed informed consent
• Social coverage
• Patient who agrees to be included in the study and who signs the informed consent form
• Patient affiliated to a healthcare insurance plan
• Patient willing to comply with study's requirements

Exclusion Criteria:

• Need of another type of surgery during the same procedure
• Mentally unbalanced patients, under supervision or guardianship
• Patient who does not understand French/ is unable to give consent
• Patient not affiliated to a French or European healthcare insurance
• Patient incarcerated