Why mumps has made a comeback
Increasing cases of mumps over the past decade in Australia and around the world have stumped experts, unsure if the outbreaks are vaccine-related or caused by resistant viruses.
Now a team of Harvard researchers say they can confirm the live attenuated vaccine is not performing as well as expected.
In a paper in Science Translational Medicine, they attribute the problem to “vaccine waning”.
However, they say adding a third vaccine dose may be all that’s needed.
Synthesising data from six studies of mumps vaccine