Health Department: Oklahoma mumps outbreak impacts vaccinated patients

Health Department: Oklahoma mumps outbreak impacts vaccinated patients
Quick Facts:
State and county health departments investigating mumps outbreak
DOCUMENT: Dec 2016 Outbreak Info: http://mediaweb.fox23.com/document_dev/2016/12/15/Mumps%20Outbreak%20Web%20Update%20SEP19_6830847_ver1.0.pdf
Outbreak currently impacts areas of Garfield and Kay Counties
Cases in Canadian, McClain, Osage, Tulsa and Woods Counties connected to those outbreak areas
Vaccinated patients were also impacted by the outbreak
A recent outbreak of mumps in Oklahoma impacts even patients vaccinated against the disease.

State Health Dept. says most Oklahomans who caught mumps were vaccinated
Officials with the State Department of Health say the people who contracted the mumps in Oklahoma already were vaccinated.

NJ Mumps Victims Were Vaccinated, Officials Say
An outbreak of mumps among New Jersey college students has highlighted the “weak sister” in the MMR vaccine.
At least eight students at the Stevens Institute of Technology in Hoboken have contracted the contagious virus despite having received two doses of the measles, mumps and rubella vaccine, according to the college.
“All Stevens’ students are required to have full vaccinations before attending the University,” the college said in a statement, adding that “outbreaks of mumps have occurred in vaccinated populations before.”

Study – Measles outbreak in a fully immunized secondary-school population.
Abstract
An outbreak of measles occurred among adolescents in Corpus Christi, Texas, in the spring of 1985, even though vaccination requirements for school attendance had been thoroughly enforced. Serum samples from 1806 students at two secondary schools were obtained eight days after the onset of the first case. Only 4.1 percent of these students (74 of 1806) lacked detectable antibody to measles according to enzyme-linked immunosorbent assay, and more than 99 percent had records of vaccination with live measles vaccine. Stratified analysis showed that the number of doses of vaccine received was the most important predictor of antibody response. Ninety-five percent confidence intervals of seronegative rates were 0 to 3.3 percent for students who had received two prior doses of vaccine, as compared with 3.6 to 6.8 percent for students who had received only a single dose. After the survey, none of the 1732 seropositive students contracted measles. Fourteen of 74 seronegative students, all of whom had been vaccinated, contracted measles. In addition, three seronegative students seroconverted without experiencing any symptoms. We conclude that outbreaks of measles can occur in secondary schools, even when more than 99 percent of the students have been vaccinated and more than 95 percent are immune.

UK students with mumps up to date on vaccinations
We have new information on the mumps outbreak at the University of Kentucky.
The three students who contracted mumps were vaccinated, according to UK.
The school doesn’t know what caused a recent outbreak of mumps on campus.
Cases of swollen jaws started appearing early this month.
Confirmation came over the weekend that three of those swollen jaw cases were cause by mumps.
UK says because there’s a 25-day incubation period for mumps, there could be more sick students.
“The majority of students on campus are likely to have received two doses of MMR vaccine,” said Derek Forster, an infectious disease doctor with UK. “For students who have not received two doses of the vaccine or are unsure if they’ve received two doses of the vaccine, we are recommending that they do that.”
A clinic is being scheduled to address vaccination needs on campus.
UK contends those who do come down with mumps after vaccination are in better shape.
“People who get mumps who’ve recently been vaccinated, you have a lower risk for those complications and that’s another reason behind the recommendations to make sure they’re up to date with those two doses.”
It’s not required by UK that students be vaccinated although its recommended.
The MMR vaccine is a requirement for public schools.

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