Question to the Department of Health and Social Care:

To ask the Secretary of State for Health and Social Care, what assessment his Department has made of the change in the prevalence of mumps in the last three years.

In England, there were 1,796 laboratory confirmed mumps cases reported in 2017, 1,061 in 2018 and 5,042 in 2019. The data is available at the following link:

https://www.gov.uk/government/publications/measles-confirmed-cases/confirmed-cases-of-measles-mumps-and-rubella-in-england-and-wales-2012-to-2013

Mumps activity in 2019 was the highest observed in a decade and the number of laboratory confirmed cases remained high in the first quarter (Q1) of 2020. This rise in mumps cases has been driven by outbreaks in universities and colleges. Many of the cases were seen in young adults born in the late nineties and early 2000s who missed out on the measles, mumps and rubella vaccine when they were children.

In Q1 of 2020 there were 3,088 laboratory confirmed mumps infections. Cases were reported in all regions of England, predominantly in young adults aged 15 to 34 years -2,533/3,088 or 82% - so the total number of laboratory-confirmed mumps cases in Q2 is likely to be an underestimate.