In 2016, the Pan American Health Organization, in partnership with the U.S. Centers for Disease Control and Prevention, began a collaborative effort with delegates from Brazil, Mexico, and Paraguay aimed at transferring technical capacity for integrated serological surveillance of population immunity and transmission of multiple infectious diseases, using the multiplex bead assay (MBA) platform. MBA makes it possible to analyze the antibodies of up to 96 antigens of various pathogens in a single dried-spot blood sample.
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