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Schematic of study protocol and exposure groups. Neonatal mice (7 days of age) were infected with RSV (2 × 105 TCID50/g body weight; RSS, ROO groups). On protocol days 41 and 55, mice were injected i.p. with ovalbumin complexed to Imject Alum (OVA and ROO groups) or with isotonic saline (SAL and RSS groups). These mice were then exposed to aerosolized ovalbumin or saline for 20 minutes on protocol days 65, 66, and 67. n = 8/group.
