1. Incidence of influenza and other respiratory viruses among pregnant women: A multi‐country, multiyear cohort
- Author
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Danilo Franco, Rafael Rauda, Rhina Dominguez, Aron J. Hall, Rosalba Gonzalez, Julio Armero, Vic Veguilla, Arlene Calvo, Juan Miguel Pascale, and Eduardo Azziz-Baumgartner
- Subjects
medicine.medical_specialty ,Influenza epidemics ,Cohort Studies ,Pregnancy ,Internal medicine ,Influenza, Human ,medicine ,Humans ,Prospective Studies ,Respiratory system ,Prospective cohort study ,business.industry ,Incidence ,Incidence (epidemiology) ,virus diseases ,Obstetrics and Gynecology ,General Medicine ,respiratory tract diseases ,Vaccination ,Influenza Vaccines ,Viruses ,Cohort ,Female ,Pregnant Women ,business ,Multi country - Abstract
OBJECTIVE To quantify rates of influenza illness and assess value of influenza vaccination among pregnant women in Panama and El Salvador. METHODS Pregnant women were enrolled and followed each week in a prospective cohort study to identify acute respiratory infections (ARI). Nasopharyngeal swabs obtained from women with febrile ARI were tested by reverse-transcription polymerase chain reaction for influenza and other respiratory viruses. RESULTS We enrolled 2,556 women between October 2014-April 2017. Sixteen percent developed at least one ARI; 59 had two ARI, and five had three ARI for a total of 463 ARI. Women in El Salvador and Panama contributed 297 person-years (py) and 293py, respectively, during influenza circulation. Twenty-one (11%) of 196 sampled women tested positive for influenza. Influenza incidence was 5.0/100py (4.3/100py in Panama and 5.7/100py in El Salvador). Only 13% of women in El Salvador and 43% in Panama had been vaccinated against influenza before influenza epidemics (p
- Published
- 2021