Background: Children with asthma may be at increased risk for low immu
nization rates given that they have recurrent illnesses that often res
ult in acute care visits to their pediatrician, visits to the emergenc
y room, admissions to the hospital, and visits to subspecialists, wher
e immunizations are not routinely administered. Objectives: To assess
immunization rates for routine and influenza vaccines in children with
asthma and assess factors that may contribute to delay. Methods: We c
onducted a cross-sectional survey of 117 children aged 6 to 48 months
with onset of asthma within the first 15 months of life. Subjects were
recruited from an allergy and immunology clinic at an urban, tertiary
care center. Those judged to have immunization delay did not have the
required 4 DTP, 3 OPV, and 1 MMR vaccine by age 24 months (4:3:1 seri
es). Receipt of influenza vaccine was determined for eligible children
with moderate to severe asthma. Results: Seventy-four (80%) children
had up-to-date immunizations at age 24 months. Those with delay had fe
wer visits to a subspecialist than those who were up-to-date (1 versus
2 visits P = .010). Twenty-two (25%) of 87 eligible subjects received
influenza vaccine. Recipients were more likely to have been hospitali
zed than nonrecipients (77% versus 49%, P = .022). Conclusions: Though
the majority of young children with asthma were up-to-date for routin
e immunizations, only 25% of children with moderate to severe asthma r
eceived influenza vaccine. Greater efforts must be made by pediatricia
ns and asthma subspecialists to ensure that children with moderate to
severe asthma are immunized against influenza virus.