Hepatitis B vaccine coverage in short and long stay prisons in Wales, UK 2013-2017 and the impact of the global vaccine shortage.

Data on hepatitis B vaccination coverage across prisons in Wales 2013-2017 were analysed to describe coverage of one dose, and the full hepatitis B vaccine course for men in prison. Whilst vaccination coverage increased in both short and long stay prisons, annual coverage was consistently lower in short stay prisons compared to long-stay prisons, despite short-stay prisons delivering a higher numbers of vaccine doses. The exception of this pattern was in 2017, at a time of global vaccine shortage. The data demonstrate the need for all prisons to work together to ensure men in prison can receive the full hepatitis B vaccine course. Collaborative working will be required to recover from the vaccine shortage and to achieve higher coverage than the plateau in 2016.