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Allergy: European Journal of Allergy and Clinical Immunology ; 76(SUPPL 110):194, 2021.
Article in English | EMBASE | ID: covidwho-1570350


Background: The CORAL study is a cross-sectional study of the impact of the Coronavirus pandemic on allergic and autoimmune dysregulation of infants born in March, April and May 2020, during Ireland's 1 st COVID-19 pandemic Lockdown. Method: Invitations were sent to families of 3065 term, singleton babies. Exclusion criteria were ante-natal PCR-proven SARSCoV-2 in a parent or co-dwelling person, IV antibiotics in neonatal period, multiple births and major congenital anomalies. At 6 months babies were invited to attend CHI Connolly for point-of-care SARSCoV-2 antibody testing. Results: Of the 3065 letters sent 353 babies were enrolled.53.7% of enrolled infants were male, 78.4% were white-Irish, average birth weight was 3.506kg. 45% were first-born and 95.5% of mothers were educated at 3 rd level or higher. Babies' average number of close contacts other than household members was 2.3 during lockdown and 5.6 afterwards. 42.5% were reported to be currently breast-fed at enrolment. By 6 months, 97% of infants had solid foods introduced but only 24.5% had tried egg and 9.6% had tried peanut. Complete primary immunisation uptake at 6 months was 99%. Lastly, 3 babies out of 200 (1.3%) tested showed presence of IgM & IgG SARSCoV-2 antibodies;2 were PCR negative, the other PCR positive. Conclusion: Initial breastfeeding and immunisation uptake to 6 months are reassuringly high in this self-selected, highly-educated cohort. The rare positive antibody tests suggest recent or current infection, so newborn babies appear to have been protected from SARSCoV-2 exposure during the 1 st COVID Pandemic lockdown.