Travelers often have a hard time predicting when a food or drink will infect them with typhoid fever. The Salmonella typhi bacteria just needs to get into a some fresh fruit or a glass of water while at a restaurant, and the traveler catches the disease.
Once they’re infected, the real problems can start. The disease can cause mild symptoms like headaches, loss of appetite, and fatigue. In some cases, it progresses to much more dangerous levels, like stomach pains and a high fever. According to the CDC, typhoid fever can “kill up to 30 percent of people who get it” and go untreated.
Those eye-opening numbers make the typhoid vaccine that much more important for travelers.
But, researchers from the University of Liverpool and Liverpool School of Tropical Medicine wanted to know if the vaccine could do more. Does the the immunization help against other diseases?