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. 2020 Apr;145(4):1157–1164.e6. doi: 10.1016/j.jaci.2019.12.010

Table III.

Delayed AEs occurring up to 72 hours after LAIV immunization, as reported by parents from 440 children with 72-hour follow-up

AE No. of children Rate (95% CI) in this cohort
Upper respiratory tract
 Upper respiratory tract (any) 55 12.5% (9.6%-16.0%)
 Isolated symptoms only, <24-h duration 23 5.2% (3.3%-7.7%)
 Isolated symptoms only, >24-h duration 31 7.1% (4.8%-9.9%)
 Nasal symptoms with ocular involvement 1 0.2% (0.1%-1.3%)
Lower respiratory tract
 Lower respiratory tract (any) 56 12.7% (9.8%-16.2%)
 Parent-reported wheeze 28 6.4% (4.3%-9.1%)
Constitutional
 Any 58 13.2% (10.2%-16.7%)
 Fever <24 h 10 2.3% (1.1%-4.1%)
 Fever >24 h 7 1.6% (0.6%-3.3%)
 Other: lethargy, headache, dizziness, myalgia 42 9.6% (7.0%-12.7%)
Dermatological
 Flare in eczema 3 0.7% (0.1%-2.0%)
 Nonspecific rash, no response to antihistamine 5 1.1% (0.4%-2.6%)
Abdominal symptoms
 Vomiting, nausea, abdominal pain 9 2.1% (0.9%-3.9%)
 Loose stools 2 0.5% (0.1%-1.6%)
Ear-nose-throat
 Mild nose bleed 3 0.7% (0.1%-2.0%)
 Sore throat 4 0.9% (0.3%-2.3%)
Ocular
 Itch, redness 1 0.2% (0.01%-1.3%)
Neurological
 Any 0 0% (0.0%-0.8%)
Cardiovascular
 Any 0 0% (0.0%-0.8%)