Immunoprophylaxis failure and vaccine response in infants born to mothers with chronic hepatitis B infection in Djibouti

Table 2 Biological status of the infants and response to immunization

Variables	Frequency	%
Infants birth weight
< 2500 g	9	18
2500-3500 g	36	72
> 3500 g	5	10
Delivery mode
Vaginal	39	78
Cesarean	11	12
Sex of infants
Male	32	64
Female	18	36
HBIG + Hep B-BD vaccine
Yes	50	100
No	0	0
Vaccination Hep B3 (penta 1, 2, 3)
Yes	50	100
No	0	0
Response to vaccine
< 100	33	84
≥ 100	5	16
Negative	2	NA
Immunoprophylaxis failure
Yes	2	4
No	48	96

HBIG: Hepatitis B immunoglobulin; Hep B-BD: Hepatitis B Birth Dose; Hep B3: Pentavalent vaccine hepatitis B vaccine administered at 6 wk, 10 wk, and 14 wk of age; NA: Not available.