A trial vaccine Vi-TT against typhoid is safe for use in children less than 2 years. The vaccine was dubbed from Vi-TT which is already licensed for use in India but nowhere else, nor are there any other vaccines for children under two. The vaccine was tested on adult volunteers in Britain, who were given a dose of bacteria. Those who fell ill were treated with antibiotics. Symptoms were "less severe" in people given the trial vaccine, who also had lower bacterial numbers in their blood, the team found.