Nature communications · 2020
Zika virus vertical transmission in children with confirmed antenatal exposure.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Brasil Patrícia, Vasconcelos Zilton, Kerin Tara, Gabaglia Claudia Raja, Ribeiro Ieda P, Bonaldo Myrna C, Damasceno Luana, Pone Marcos V, Pone Sheila, Zin Andrea, Tsui Irena, Adachi Kristina, Pereira Jose Paulo, Gaw Stephanie L, Carvalho Liege, Cunha Denise C, Guida Leticia, Rocha Mirza, Cherry James D, Wang Lulan, Aliyari Saba, Cheng Genhong, Foo Suan-Sin, Chen Weiqiang, Jung Jae, Brickley Elizabeth, Moreira Maria Elisabeth L, Nielsen-Saines Karin
Аннотация
We report Zika virus (ZIKV) vertical transmission in 130 infants born to PCR+ mothers at the time of the Rio de Janeiro epidemic of 2015-2016. Serum and urine collected from birth through the first year of life were tested by quantitative reverse transcriptase polymerase chain reaction (PCR) and/or IgM Zika MAC-ELISA. Four hundred and seven specimens are evaluated; 161 sera tested by PCR and IgM assays, 85 urines by PCR. Sixty-five percent of children (N = 84) are positive in at least one assay. Of 94 children tested within 3 months of age, 70% are positive. Positivity declines to 33% after 3 months. Five children are PCR+ beyond 200 days of life. Concordance between IgM and PCR results is 52%, sensitivity 65%, specificity 40% (positive PCR results as gold standard). IgM and serum PCR are 61% concordant; serum and urine PCR 55%. Most children (65%) are clinically normal. Equal numbers of children with abnormal findings (29 of 45, 64%) and normal findings (55 of 85, 65%) have positive results, p = 0.98. Earlier maternal trimester of infection is associated with positive results (p = 0.04) but not clinical disease (p = 0.98). ZIKV vertical transmission is frequent but laboratory confirmed infection is not necessarily associated with infant abnormalities.