BMJ Open (Dec 2020)

Zika virus infection in pregnancy: a protocol for the joint analysis of the prospective cohort studies of the ZIKAlliance, ZikaPLAN and ZIKAction consortia

  • David Brown,
  • Annelies Wilder-Smith,
  • Marília Dalva Turchi,
  • Adriana Tami,
  • Antoni Soriano-Arandes,
  • Maria Elisabeth Moreira,
  • Demócrito de Barros Miranda-Filho,
  • Marion Koopmans,
  • Thomas Jaenisch,
  • Patrícia Brasil,
  • Ricardo Arraes de Alencar Ximenes,
  • Luana Damasceno,
  • Barry Rockx,
  • Wayner Vieira De souza,
  • Philippe Mayaud,
  • Elizabeth B Brickley,
  • Carlo Giaquinto,
  • Bruno Hoen,
  • Daniel Lang,
  • Neal Alexander,
  • A E Ades,
  • Xavier de Lamballerie,
  • Ulisses Ramos Montarroyos,
  • Celina Maria Turchi Martelli,
  • Thalia Velho Barreto de Araújo,
  • Claire Thorne,
  • Fabiana Gordon,
  • Ernesto T A Marques,
  • Adriana Gomez,
  • Vivian I Avelino-Silva,
  • Moritz Pohl,
  • Kerstin D Rosenberger,
  • Sarah Esperanza Bethencourt Castillo,
  • Victor Hugo Borja Aburto,
  • Celia D C Christie,
  • Jose Eduardo Gotuzzo H,
  • Mauro Martins Teixeira,
  • Maria Consuelo Miranda,
  • J Glenn Morris,
  • Paola Mariela Saba Villarroel,
  • Carmen Soria Segarra,
  • Joshua Anzinger,
  • Valery Beau De Rochars,
  • Maria de Fatima Albuquerque,
  • Rafael F O França,
  • Hugo Lopez-Gatell Ramirez,
  • Maria G Guzman,
  • Rigan Louis,
  • Anyela Lozano,
  • Eric Martinez,
  • Ricard Ortiz Serrano,
  • Silvia P Salgado,
  • Aluizio Augusto Segurado,
  • Zilton F M Vasconcelos,
  • Isabelle Freire Tabosa,
  • Luis Angel Villar

DOI
https://doi.org/10.1136/bmjopen-2019-035307
Journal volume & issue
Vol. 10, no. 12

Abstract

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Introduction Zika virus (ZIKV) infection in pregnancy has been associated with microcephaly and severe neurological damage to the fetus. Our aim is to document the risks of adverse pregnancy and birth outcomes and the prevalence of laboratory markers of congenital infection in deliveries to women experiencing ZIKV infection during pregnancy, using data from European Commission-funded prospective cohort studies in 20 centres in 11 countries across Latin America and the Caribbean.Methods and analysis We will carry out a centre-by-centre analysis of the risks of adverse pregnancy and birth outcomes, comparing women with confirmed and suspected ZIKV infection in pregnancy to those with no evidence of infection in pregnancy. We will document the proportion of deliveries in which laboratory markers of congenital infection were present. Finally, we will investigate the associations of trimester of maternal infection in pregnancy, presence or absence of maternal symptoms of acute ZIKV infection and previous flavivirus infections with adverse outcomes and with markers of congenital infection. Centre-specific estimates will be pooled using a two-stage approach.Ethics and dissemination Ethical approval was obtained at each centre. Findings will be presented at international conferences and published in peer-reviewed open access journals and discussed with local public health officials and representatives of the national Ministries of Health, Pan American Health Organization and WHO involved with ZIKV prevention and control activities.