inclusion criteria: - at least 18 years of age or older - clinically evident or otherwise confirmed severe pneumonia - sars-cov-2 infection confirmation (tested positive in last 14 days before randomization with locally available test system)

inclusion criteria: - at least 18 years of age or older - clinically evident or otherwise confirmed severe pneumonia - sars-cov-2 infection confirmation (tested positive in last 14 days before randomization with locally available test system)