Bovine respiratory syncytial virus ISCOMs - Protection in the presence of maternal antibodies
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Bovine respiratory syncytial virus ISCOMs - Protection in the presence of maternal antibodies. / Hägglund, Sara; Hu, Ke Fei; Larsen, Lars Erik; Hakhverdyan, Mikhayil; Valarcher, Jean François; Taylor, Geraldine; Morein, Bror; Belák, Sándor; Alenius, Stefan.
I: Vaccine, Bind 23, Nr. 5, 16.12.2004, s. 646-655.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - Bovine respiratory syncytial virus ISCOMs - Protection in the presence of maternal antibodies
AU - Hägglund, Sara
AU - Hu, Ke Fei
AU - Larsen, Lars Erik
AU - Hakhverdyan, Mikhayil
AU - Valarcher, Jean François
AU - Taylor, Geraldine
AU - Morein, Bror
AU - Belák, Sándor
AU - Alenius, Stefan
PY - 2004/12/16
Y1 - 2004/12/16
N2 - The protection induced by immunostimulating complexes (ISCOMs) against bovine respiratory syncytial virus (BRSV) was evaluated and compared to that of a commercial inactivated vaccine (CV) in calves with BRSV-specific maternal antibodies. Following experimental challenge, controls (n = 4) and animals immunized with CV (n = 5) developed moderate to severe respiratory disease, whereas calves immunized with ISCOMs (n = 5) remained clinically healthy. BRSV was re-isolated from the nasopharynx of all controls and from all calves immunized with CV, but from none of the calves immunized with ISCOMs. BRSV-RNA was detected by real-time PCR from a single animal in this group. Significantly higher BRSV-specific nasal IgG, serum IgG 1 and IgG 2 titers were detected before and after challenge in animals immunized with ISCOMs versus CV. In conclusion, the ISCOMs overcame the suppressive effect of maternal antibodies in calves and induced strong clinical and virological protection against a BRSV challenge.
AB - The protection induced by immunostimulating complexes (ISCOMs) against bovine respiratory syncytial virus (BRSV) was evaluated and compared to that of a commercial inactivated vaccine (CV) in calves with BRSV-specific maternal antibodies. Following experimental challenge, controls (n = 4) and animals immunized with CV (n = 5) developed moderate to severe respiratory disease, whereas calves immunized with ISCOMs (n = 5) remained clinically healthy. BRSV was re-isolated from the nasopharynx of all controls and from all calves immunized with CV, but from none of the calves immunized with ISCOMs. BRSV-RNA was detected by real-time PCR from a single animal in this group. Significantly higher BRSV-specific nasal IgG, serum IgG 1 and IgG 2 titers were detected before and after challenge in animals immunized with ISCOMs versus CV. In conclusion, the ISCOMs overcame the suppressive effect of maternal antibodies in calves and induced strong clinical and virological protection against a BRSV challenge.
KW - Bovine respiratory syncytial virus
KW - BRSV
KW - ISCOM
U2 - 10.1016/j.vaccine.2004.07.006
DO - 10.1016/j.vaccine.2004.07.006
M3 - Journal article
C2 - 15542185
AN - SCOPUS:8144222958
VL - 23
SP - 646
EP - 655
JO - Vaccine
JF - Vaccine
SN - 0264-410X
IS - 5
ER -
ID: 247400644