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Viruses
Volume 13
Issue 5
10.3390/v13050866
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Article

Low Maternal Immunoglobulin G Avidity and Single Parity as Adverse Implications of Human Cytomegalovirus Vertical Transmission in Pregnant Women with Immunoglobulin M Positivity

by
Masatoki Kaneko
1,2,*,
Junsuke Muraoka
1,
Kazumi Kusumoto
1 and
Toshio Minematsu
3
1
Department of Obstetrics and Gynecology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
2
Graduate School of Nursing Science, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
3
Research Institute for Disease Control, Aisenkai Nichinan Hospital, 3649-2 Kazeda, Nichinan, Miyazaki 887-0034, Japan
*
Author to whom correspondence should be addressed.
Viruses 2021, 13(5), 866; https://doi.org/10.3390/v13050866
Submission received: 4 April 2021 / Revised: 28 April 2021 / Accepted: 5 May 2021 / Published: 9 May 2021
(This article belongs to the Special Issue Cytomegalovirus Immunity 2021)
Review Reports Versions Notes

Abstract

Human cytomegalovirus (CMV) is the leading cause of neurological sequelae in infants. Understanding the risk factors of primary CMV infection is crucial in establishing preventive strategies. Thus, we conducted a retrospective cohort study to identify risk factors of vertical transmission among pregnant women with immunoglobulin (Ig) M positivity. The study included 456 pregnant women with IgM positivity. Information on age, parity, occupation, clinical signs, IgM levels, and IgG avidity index (AI) was collected. The women were divided into infected and non-infected groups. The two groups showed significant differences in IgM level, IgG AI, number of women with low IgG AI, clinical signs, and number of pregnant women with single parity. In the multiple logistic regression analysis, pregnant women with single parity and low IgG AI were independent predictors. Among 40 women who tested negative for IgG antibody in their previous pregnancy, 20 showed low IgG AI in their current pregnancy. Among the 20 women, 4 had vertical transmission. These results provide better understanding of the risk factors of vertical transmission in pregnant women with IgM positivity.
Keywords: human cytomegalovirus; congenital infection; immunoglobulin g avidity; pregnancy; preventive measure human cytomegalovirus; congenital infection; immunoglobulin g avidity; pregnancy; preventive measure

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MDPI and ACS Style

Kaneko, M.; Muraoka, J.; Kusumoto, K.; Minematsu, T. Low Maternal Immunoglobulin G Avidity and Single Parity as Adverse Implications of Human Cytomegalovirus Vertical Transmission in Pregnant Women with Immunoglobulin M Positivity. Viruses 2021, 13, 866. https://doi.org/10.3390/v13050866

AMA Style

Kaneko M, Muraoka J, Kusumoto K, Minematsu T. Low Maternal Immunoglobulin G Avidity and Single Parity as Adverse Implications of Human Cytomegalovirus Vertical Transmission in Pregnant Women with Immunoglobulin M Positivity. Viruses. 2021; 13(5):866. https://doi.org/10.3390/v13050866

Chicago/Turabian Style

Kaneko, Masatoki, Junsuke Muraoka, Kazumi Kusumoto, and Toshio Minematsu. 2021. "Low Maternal Immunoglobulin G Avidity and Single Parity as Adverse Implications of Human Cytomegalovirus Vertical Transmission in Pregnant Women with Immunoglobulin M Positivity" Viruses 13, no. 5: 866. https://doi.org/10.3390/v13050866

APA Style

Kaneko, M., Muraoka, J., Kusumoto, K., & Minematsu, T. (2021). Low Maternal Immunoglobulin G Avidity and Single Parity as Adverse Implications of Human Cytomegalovirus Vertical Transmission in Pregnant Women with Immunoglobulin M Positivity. Viruses, 13(5), 866. https://doi.org/10.3390/v13050866

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