HLH is a catastrophic and likely underdiagnosed pathology with multiple triggers including infection. PVB19 can cause persistent marrow infection leading to HLH despite negative acute serologic markers making timely diagnosis difficult. Increased awareness of PVB19-HLH is warranted given its potentially lethal nature and the careful interpretation required with serologic markers.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6878072PMC
http://dx.doi.org/10.1002/ccr3.2401DOI Listing

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