Table 1 Demographic and clinical characteristics of women and infants enrolled.

From: Humoral response to anti-SARS-CoV-2 vaccine in breastfeeding mothers and mother-to-infant antibody transfer through breast milk

 

No (%)

No. of mothers

24

No. of infantsa

23

Maternal age at 1st dose, median (IQR), y

34 (33–39)

Mode of delivery

 

Vaginal

19 (79)

Exclusive breastfeeding at 1st dose

15 (65)

Exclusive breastfeeding at 2nd dose 90 ± 1 days

3 (13)

Gestational age, median (range), wks

39 (33–41)

Preterm birth

2 (8)

Birth weight, mean (SD), g

3455 (440)

Infant age at 1st dose, median (IQR), wks

21 (11–30)

 

After 1st dose

After 2nd dose

Reported reaction

10 (41)

18 (75)

Injection-site pain

5 (21)

2 (8)

Malaise

1 (4)

14 (58)

Headache

1 (4)

7 (29)

Fever

0

4 (17)

Diarrhea

1 (4)

0

Myalgia

1 (4)

5 (21)

Nausea

2 (8)

2 (8)

Rash

0

1 (4)

Adenitis

0

1 (4)

  1. aSamples from 1 neonate were excluded due to anti-N serum positivity at T3.