UK Influenza vaccine effectiveness in 2016/17

Publication Date: 31 August 2017

Data published today by Public Health England (PHE) and the Devolved Administrations has shown that the flu vaccine nasal spray reduced the risk of vaccinated children getting flu by 65.8% in the 2016/17 season.

Effectiveness of flu vaccine in younger adults aged 18-64 years reduced the risk of flu by 40.6% amongst those who received the vaccine in 2016/17, which is within the range we would typically expect to see.

The UK programme plans to offer flu vaccine to all children aged 2-11 years with the aim of providing both direct protection to those children who have been vaccinated, but also by reducing their risk of infecting others. This will indirectly protect other vulnerable members of the population such as those with weakened immune systems and the elderly.”

Summary information can be found at