 Group 1 Salmonella typhi vaccine Group 2 Salmonella typhi vaccine oxygen treatment Group 3 Salmonella typhi vaccine oxygen treatment Atorvastatin At 8.00 am on study day a peripheral venous catheter will be inserted. This catheter will be used to collect blood sample during the study day. In addition, peripheral oxygen saturation will be measured by pulse oximetry. After baseline venous blood samples have been collected, all study participants will receive 0.5 mL of the Salmonella typhi vaccine as an intramuscular injection Typhim Vi, Sanofi Pasteur MSD, injection solution 25 microgram0.5 mL. 