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Article Abstract
Background: Enterovirus D68 (EV-D68), belonging to Enterovirus D, is a unique human enterovirus mainly associated with common respiratory diseases. However, EV-D68 can cause severe respiratory diseases, and EV-D68 endemic is epidemiologically linked to current global epidemic of acute flaccid myelitis.
Methods: In this study, we measured neutralizing antibody titers against six clinical EV-D68 isolates in nine intravenous immune globulin (IVIG) products commercially available in Japan to assess their potential as therapeutic options for severe EV-D68 infection.
Results: Seven IVIG products manufactured from Japanese donors contained high neutralizing antibody titers (IC = 0.22-85.01 µg/mL) against all six EV-D68 strains. Apparent differences in neutralizing titers among the six EV-D68 strains were observed for all IVIG products derived from Japanese and non-Japanese blood donors.
Conclusions: High levels of EV-D68-neutralizing antibodies in IVIG products manufactured from Japanese donors suggest that anti-EV-D68 antibodies are maintained in the Japanese donor population similarly as found in foreign blood donors. Apparent differences in neutralizing antibody titers against the six EV-D68 strains suggest distinct antigenicity among the strains used in this study regardless of the genetic similarity of EV-D68.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10394975 | PMC |
| http://dx.doi.org/10.1186/s12879-023-08429-z | DOI Listing |
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