Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Investigating the Effects of Typhoid Vaccine on Sleep in Healthy Volunteers
Brief Summary: Research studies have found a relationship between the immune system (how the body reacts to an infection) and the development of depression. As it is still unclear how they might be linked the investigators will use a typhoid vaccination to activate the body's immune system and will measure the response by looking at changes in sleep patterns.