A Mumps Outbreak among Fully Vaccinated People

On June 5, 2020, the U.S Centers for Disease Control (CDC) published the details of a recent multistate outbreak of mumps in its Morbidity and Mortality Weekly Report (MMWR). The outbreak involved 62 cases linked to a single asymptomatic wedding attendee. Even though mumps is a vaccine-preventable disease, 41 of the individuals infected in the reported incident had been fully vaccinated according to the current guidelines. What started as a mild illness in a caretaker of children in Nebraska grew into an epidemic involving communities in six different states. This raises concerns about waning immunity from childhood mumps immunization.


Of course similar outbreaks occur among recently vaccinated people, sometimes caused by the vaccine itself https://pubmed.ncbi.nlm.nih.gov/22749598/ .   Thus another vaccine failure is used to promote more vaccination.  What’s wrong with vitamin D?

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