Some strains were cross-resistant. Conclusions They arefirst-linedrugs to treattyphoidfever, especially typhoid fevercaused by multipledrug-resistantstrain.
The vaccine provides protection for hepatitis A for patients over 15 years for a minimum of 12 months and protection against typhoidfever for up to three years.
Their research, published in this week's Nature, studied the relationship between Salmonella typhi, the bacterium that causes typhoidfever, and the protein which, when faulty, causes cystic fibrosis.