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Risk of respiratory syncytial virus infection for infants from low-income families in relationship to age, sex, ethnic group, and maternal antibody level

Respiratory Virus ImmunityVirus EpidemiologyPediatric Lung DiseaseCovid-19Maternal ImmunizationPediatric EpidemiologyEthnic GroupRespiratory InfectionPublic HealthLow-income FamiliesRespiratory DiseasesMaternal HealthVirologyEpidemiologyVaccinationPediatricsInfectious Respiratory DiseaseMaternal Antibody LevelMedicine