Systematic Review of Avian Influenza Virus Infection and Outcomes during Pregnancy

Human cases of avian influenza A(H5N2) and A(H5N1) viruses associated with outbreaks in birds and mammals are increasing globally, raising concerns about the possibility of a future avian influenza pandemic. We conducted a systematic review examining 30 reported cases of avian influenza in pregnant...

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Main Authors: Rachael Purcell, Michelle L. Giles, Nigel W. Crawford, Jim Buttery
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2025-01-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/31/1/24-1343_article
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author Rachael Purcell
Michelle L. Giles
Nigel W. Crawford
Jim Buttery
author_facet Rachael Purcell
Michelle L. Giles
Nigel W. Crawford
Jim Buttery
author_sort Rachael Purcell
collection DOAJ
description Human cases of avian influenza A(H5N2) and A(H5N1) viruses associated with outbreaks in birds and mammals are increasing globally, raising concerns about the possibility of a future avian influenza pandemic. We conducted a systematic review examining 30 reported cases of avian influenza in pregnant women. We found high mortality rates for mothers (90.0%, 27/30) and their babies (86.7%, 26/30) when women were infected with avian influenza virus during pregnancy. Despite being a high-risk population and having worse health outcomes across multiple pandemics, pregnant women are often excluded from vaccine trials. However, as the risk for a new pandemic increases and human vaccines against avian influenza are developed, early inclusion of pregnant women in clinical trials can inform the risk–benefit analysis for both the mother and their newborn infant. Early inclusion of pregnant women in public health vaccination programs is vital for protecting this high-risk population.
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spelling doaj-art-87b5a3b35d624fe482cede9abee738942025-08-20T02:39:56ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592025-01-01311505610.3201/eid3101.241343Systematic Review of Avian Influenza Virus Infection and Outcomes during PregnancyRachael PurcellMichelle L. GilesNigel W. CrawfordJim Buttery Human cases of avian influenza A(H5N2) and A(H5N1) viruses associated with outbreaks in birds and mammals are increasing globally, raising concerns about the possibility of a future avian influenza pandemic. We conducted a systematic review examining 30 reported cases of avian influenza in pregnant women. We found high mortality rates for mothers (90.0%, 27/30) and their babies (86.7%, 26/30) when women were infected with avian influenza virus during pregnancy. Despite being a high-risk population and having worse health outcomes across multiple pandemics, pregnant women are often excluded from vaccine trials. However, as the risk for a new pandemic increases and human vaccines against avian influenza are developed, early inclusion of pregnant women in clinical trials can inform the risk–benefit analysis for both the mother and their newborn infant. Early inclusion of pregnant women in public health vaccination programs is vital for protecting this high-risk population. https://wwwnc.cdc.gov/eid/article/31/1/24-1343_articleavian influenza virusinfluenzaviruseszoonosesrespiratory infectionspregnancy
spellingShingle Rachael Purcell
Michelle L. Giles
Nigel W. Crawford
Jim Buttery
Systematic Review of Avian Influenza Virus Infection and Outcomes during Pregnancy
Emerging Infectious Diseases
avian influenza virus
influenza
viruses
zoonoses
respiratory infections
pregnancy
title Systematic Review of Avian Influenza Virus Infection and Outcomes during Pregnancy
title_full Systematic Review of Avian Influenza Virus Infection and Outcomes during Pregnancy
title_fullStr Systematic Review of Avian Influenza Virus Infection and Outcomes during Pregnancy
title_full_unstemmed Systematic Review of Avian Influenza Virus Infection and Outcomes during Pregnancy
title_short Systematic Review of Avian Influenza Virus Infection and Outcomes during Pregnancy
title_sort systematic review of avian influenza virus infection and outcomes during pregnancy
topic avian influenza virus
influenza
viruses
zoonoses
respiratory infections
pregnancy
url https://wwwnc.cdc.gov/eid/article/31/1/24-1343_article
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AT michellelgiles systematicreviewofavianinfluenzavirusinfectionandoutcomesduringpregnancy
AT nigelwcrawford systematicreviewofavianinfluenzavirusinfectionandoutcomesduringpregnancy
AT jimbuttery systematicreviewofavianinfluenzavirusinfectionandoutcomesduringpregnancy