In this trial, patients that are severely affected by the disease COVID-19 will either receive infliximab, an anti-inflammatory drug, or standard therapy. Infliximab is a drug that inhibits inflammation by blocking a molecule called TNFα. The patients receive the drug via an infusion into a vein. The primary goal of this trial is to see whether the drug infliximab affects how many people died from COVID-19 after 28 days by comparing patients receiving the drug in addition to standard therapy with patients only receiving standard therapy.||Furthermore, this trial will look at whether the drug is safe to use in these patients, whether it has an effect on the inflammation and whether it can affect how ill patients are after surviving the disease.||The trial is conducted in more than one hospital. As COVID-19 is responsible for a global pandemic, positive results of this trial could affect patients, healthcare and economic systems worldwide.