Hospitalizations With Respiratory Illness Among Pregnant Women During Influenza Season

Abstract

III.

Review on the effects of influenza vaccination during pregnancy on preterm births

“…1 Also using data from the USA, Cox et al analyzed data from a representative hospital discharge database during the 1998-2002 influenza seasons and showed that the proportion of hospitalizations among pregnant women with respiratory illness was significantly higher during influenza circulation (3.4 per 1000 hospitalizations of pregnant women) compared with the rest of the year (1.8 per 1000). 2 Furthermore pregnant women with high-risk conditions for which influenza vaccination is recommended by the Advisory Committee on Immunization Practices were >3 times more likely to be hospitalized for respiratory illness during influenza season than women without these conditions. 2 Dodds et al conducted a 13 year (1990-2002) population-based cohort study involving pregnant women in Nova Scotia, Canada, and compared the rates of hospital admissions and physician visits due to respiratory illness during the influenza season with rates during the influenza season in the year before pregnancy and with rates during non-influenza circulation.…”

“…2 Furthermore pregnant women with high-risk conditions for which influenza vaccination is recommended by the Advisory Committee on Immunization Practices were >3 times more likely to be hospitalized for respiratory illness during influenza season than women without these conditions. 2 Dodds et al conducted a 13 year (1990-2002) population-based cohort study involving pregnant women in Nova Scotia, Canada, and compared the rates of hospital admissions and physician visits due to respiratory illness during the influenza season with rates during the influenza season in the year before pregnancy and with rates during non-influenza circulation. 3 The authors reported a rateratio of hospital admissions among pregnant women without comorbidities in the third trimester during influenza seasons of 5.1 (95%CI: 3.6 to 7.3) compared with admissions in the year before pregnancy, and of 2.4 (95%CI: 1.7 to 3.4) comparing influenza and non-influenza seasons.…”

Maternal immunization

“…17,18 Numerous studies have documented increased respiratory, febrile, and cardiopulmonary morbidity among pregnant women during seasonal influenza epidemics. 7,8,[19][20][21][22][23][24] These maternal consequences increasingly appear to be associated with numerous adverse pregnancy outcomes (preterm delivery, fetal distress, fetal growth restriction, cesarean delivery), and the potential for detrimental neonatal outcomes. 20,25,26 Influenza vaccination is the most effective strategy for influenza prevention during pregnancy.…”

“…7,8,[19][20][21][22][23][24] These maternal consequences increasingly appear to be associated with numerous adverse pregnancy outcomes (preterm delivery, fetal distress, fetal growth restriction, cesarean delivery), and the potential for detrimental neonatal outcomes. 20,25,26 Influenza vaccination is the most effective strategy for influenza prevention during pregnancy. Multiple studies document the immunogenicity [27][28][29] and safety 30,31 of maternal influenza vaccination.…”

Assessment of clinical and laboratory indicators in pregnant women vaccinated against influenza

“…Вакцинопрофилактика управляемых инфекционных заболеваний является важным компонентом предупреж-дения возникновения острых и обострений хронических и рецидивирующих инфекций верхних и нижних дыха-тельных путей у беременных женщин, позволяя улучшить качество жизни и избежать развития осложнений течения беременности [14][15][16].…”