This detected seroprevalence among individuals with no known history of exposure may indicate continued exposure to MARV or MARV-like antigens almost 25 years after the conclusion of the outbreak. Beyond MARV reactivity, detected cross-reactivity to pan-filovirus targets further emphasize a need for increased surveillance, and the potential for asymptomatic, undetected cases in the region.
Merritt et al. (Thu,) studied this question.