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Source: https://www.phillyvoice.com/mumps-ou...ooster-shots-/
January 12, 2023
Mumps outbreaks have become more common in recent decades. Scientists are trying to determine why
The trend has persisted despite high vaccination rates in the U.S. Researchers have two main theories – waning immunity and new viral strains
By Tracey Romero
PhillyVoice Staff
A mumps outbreak spread through Temple University four years ago, infecting 186 people and prompting students, faculty and staffers to line up for booster doses.
The outbreak underscored the increased number of mumps cases seen in the United States in recent decades. Though mumps cases decreased by more than 99% in the decades after the mumps vaccine became available, they have increased since 2006 – despite high vaccination rates. Large outbreaks particularly have popped up in settings where people have frequent close contact, including colleges.
The same trend has played out in other countries with high vaccination rates. What's behind it? Scientists have two theories – waning immunity in the years after vaccination and the emergence of new virus strains that the immune system doesn't recognize...
January 12, 2023
Mumps outbreaks have become more common in recent decades. Scientists are trying to determine why
The trend has persisted despite high vaccination rates in the U.S. Researchers have two main theories – waning immunity and new viral strains
By Tracey Romero
PhillyVoice Staff
A mumps outbreak spread through Temple University four years ago, infecting 186 people and prompting students, faculty and staffers to line up for booster doses.
The outbreak underscored the increased number of mumps cases seen in the United States in recent decades. Though mumps cases decreased by more than 99% in the decades after the mumps vaccine became available, they have increased since 2006 – despite high vaccination rates. Large outbreaks particularly have popped up in settings where people have frequent close contact, including colleges.
The same trend has played out in other countries with high vaccination rates. What's behind it? Scientists have two theories – waning immunity in the years after vaccination and the emergence of new virus strains that the immune system doesn't recognize...