Antibody response to accelerated Hib immunisation in preterm infants receiving dexamethasone for chronic lung disease.
OBJECTIVE
To study the effect of dexamethasone on the routine immunisation of preterm infants with chronic lung disease.


METHODS
Serum samples were obtained before and after immunisation from an unselected cohort of 59 preterm infants. Haemophilus influenzae antibodies were measured using an ELISA method and differences in the geometric mean values between the two groups of babies analysed.


RESULTS
Sixteen infants received no dexamethasone. Before and after immunisation antibody titres for those receiving no dexamethasone were 0.16 and 4.63 mcg IgG/ml. Corresponding values for those receiving dexamethasone were 0.10 and 0.51 mcg IgG/ml, respectively.


CONCLUSIONS
Dexamethasone used in the treatment of chronic lung disease seems to significantly affect the antibody response of preterm infants to immunisation against Haemophilus influenzae.
D000893:Anti-Inflammatory Agents / Q000627:therapeutic use*; D000907:Antibodies, Bacterial / Q000097:blood*; D015331:Cohort Studies; D003907:Dexamethasone / Q000627:therapeutic use*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D018073:Haemophilus Vaccines / Q000008:administration & dosage* / Q000276:immunology; D019741:Haemophilus influenzae type b / Q000276:immunology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature / Q000276:immunology*; D007235:Infant, Premature, Diseases / Q000188:drug therapy; D008173:Lung Diseases, Obstructive / Q000188:drug therapy; D008297:Male; D018709:Statistics, Nonparametric