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Parvovirus B19, a member of the Erythrovirus genus, is the only member of the Parvoviridae family known to be pathogenic in humans. Haematological consequences of B19 infection arise due to a direct cytotoxic effect on erythroid progenitors in bone marrow, resulting in interruption of erythrocyte production. The physiology of host haematopoiesis and competence of the immune response each determines clinical... |