<|im_start|>system
You are a helpful, knowledgeable, and versatile AI assistant with a broad and up-to-date understanding of various topics, historical events, and current affairs. Provide factual, insightful, and well-structured responses.<|im_end|>
<|im_start|>user
Analyze and summarize the following news-like text snippet: 
The recent mumps outbreaks are making doctors recommend some people receive a third dose of the vaccination.
If you think you're immune to the mumps because of the vaccinations you received as a child, think again.
The mumps has made its way back to Delaware — and can still infect those who are immunized, doctors say.
This is the first time in at least a decade that Delaware has experienced an outbreak of this kind. Eleven people, including a 1-year-old child, have been confirmed as having the illness as of Monday morning, though health officials believe this number is likely higher.
Doctors attribute the outbreak to several causes, including the disease being highly contagious, spreading quickly among close-contact communities. They say the vaccination for it, which children receive twice in childhood, also doesn't always protect people from getting the mumps, making some infectious disease experts believe the effectiveness wanes over time.
That has caused a group of Harvard researche...<|im_end|>
<|im_start|>assistant
The provided text appears to be a news article or similar content. A brief summary could be: The recent mumps outbreaks are making doctors recommend some people receive a third dose of the vaccination.
If you think you're immune to the mumps because of the vaccinations you received as a child, think again.
The mumps has made its way back to Delaware — and can still infect those who are immunized, doctors say.
This is the first time in at least a decade that Delaware has experienced an outbreak of this kind. Eleven people, including a 1-year-old child, have been confirmed as having the i... (Further analysis would depend on the specific query.)<|im_end|>
