The test measures immunoglobulin G antibodies, which indicate past exposure or vaccination to viruses like measles.
Health officials warn the nation could lose its measles-free designation as cases surge nationwide.
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Alert! Measles Is Back In The US

US Poised To Lose Measles-Free Status After a year of ongoing measles outbreaks that have sickened more than 2,400 people, ...
Leaders at Baptist Health have confirmed two cases of measles involving pediatric patients in Duval County.
The Bay Area has now recorded two measles cases since late last year — an early test of whether one of the nation’s most ...
Waste water surveillance could show the spread of measles, but the two state doesn't have the testing in place.
Wastewater surveillance testing for measles can alert public health authorities before and during a measles outbreak.
The Lincoln-Lancaster County Health Department (LLCHD) has reported the detection of measles in a local wastewater sample ...
The Lincoln-Lancaster County Health Department said Friday that measles has recently been detected in a local wastewater ...
North Carolina has seen 11 measles cases since December, with many of them occurring in communities where vaccination rates ...
The health department said the wastewater sample was taken from the Theresa Street Water Resource Recovery Facility in north ...
Kathmandu, Jan. 26 -- Malangwa Municipality in Sarlahi has witnessed a fresh outbreak of measles virus, with around two dozen ...