Abstract:
:Zika virus is causally linked with congenital microcephaly and may be associated with pregnancy loss. However, the mechanisms of Zika virus intrauterine transmission and replication and its tropism and persistence in tissues are poorly understood. We tested tissues from 52 case-patients: 8 infants with microcephaly who died and 44 women suspected of being infected with Zika virus during pregnancy. By reverse transcription PCR, tissues from 32 (62%) case-patients (brains from 8 infants with microcephaly and placental/fetal tissues from 24 women) were positive for Zika virus. In situ hybridization localized replicative Zika virus RNA in brains of 7 infants and in placentas of 9 women who had pregnancy losses during the first or second trimester. These findings demonstrate that Zika virus replicates and persists in fetal brains and placentas, providing direct evidence of its association with microcephaly. Tissue-based reverse transcription PCR extends the time frame of Zika virus detection in congenital and pregnancy-associated infections.
journal_name
Emerg Infect Disjournal_title
Emerging infectious diseasesauthors
Bhatnagar J,Rabeneck DB,Martines RB,Reagan-Steiner S,Ermias Y,Estetter LB,Suzuki T,Ritter J,Keating MK,Hale G,Gary J,Muehlenbachs A,Lambert A,Lanciotti R,Oduyebo T,Meaney-Delman D,Bolaños F,Saad EA,Shieh WJ,Zaki SRdoi
10.3201/eid2303.161499subject
Has Abstractpub_date
2017-03-01 00:00:00pages
405-414issue
3eissn
1080-6040issn
1080-6059journal_volume
23pub_type
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