October 1784, Thomas Jefferson (known as the Founding Father of the United States and author of the Declaration of Independence) was serving as Minister to France.
Salmonella Typhi bacteria can invade the intestines and blood and lead to a disease called typhoid fever – a disease that affects around 11 million people each year globally.
Malaria is a life-threatening disease with a big global impact.
Respiratory syncytial virus (RSV) is a very common virus – nearly all children will catch it before they turn 2, and everyone has been infected by it several times before adulthood.
Salmonella is a common type of bacteria that lives in the guts of people and animals. In most cases in the UK, salmonella infections cause non-life-threatening gut symptoms including diarrhoea, vomiting, cramps and fever.
Understanding the causes and spread of disease is crucial to improving human (and animal) health.
Modern-day volunteer infection studies are carefully managed. The aim is to deliberately expose healthy volunteers to infections – they might get sick, but in a safe and manageable way with healthcare support.