» Articles » PMID: 33363346

Comparative Safety and Efficacy of Two Bivalent Vaccines Containing Newcastle Disease LaSota and Avian Influenza H9N2 Sidrap Isolate Formulated with Different Oil Adjuvants

Overview
Journal Vet World
Date 2020 Dec 28
PMID 33363346
Authors
Affiliations
Soon will be listed here.
Abstract

Background And Aim: Newcastle disease (ND) and avian influenza (AI) are two devastating diseases of poultry, which cause great economic losses to the poultry industry and disrupt food security in our country. The use of ND-AI inactive bivalent vaccine is very effective and economical to prevent and control ND and AI disease. Bivalent ND LaSota-AI H9N2 vaccine is not yet available in Indonesia. The inactivated vaccines used in poultry industry often require oil adjuvant to elicit a sufficient immune response. This study aimed to develop the bivalent inactive vaccines containing ND LaSota and AI H9N2 Sidrap isolate which are local isolates as poultry vaccine candidates, and formulated with two different commercial adjuvants, then compared.

Materials And Methods: Two vaccines bivalent were prepared by emulsifying inactivated Newcastle disease virus (LaSota strain) and AI H9N2 Sidrap isolate viruses with Marcol white mineral oil and Montanide ISA70 adjuvants. Both of bivalent vaccines were tested for safety (physical and histopathological at the injection site) and efficacy in specific-pathogen-free chickens. Parameters used for the evaluation of the efficacy were immunogenicity by hemagglutination inhibition and protection percentage.

Results: Both bivalent vaccines are safe to use. Post-vaccination (PV) immune response was observed using a hemagglutination inhibition test at 2, 3, 4, 5, 6, 7, and 8 weeks of PV. The bivalent vaccine B gives a better immune response to ND at 2, 3, and 4 weeks of PV (p<0.05) compared to the bivalent vaccine A, but in 5, 6, 7, and 8 weeks, the PV does not show differences in the immune response. The immune response to AI H9N2 showed differences at weeks 2 and 3 PV (p<0.05) with the bivalent vaccine B indicated higher immunity. A single immunization with both bivalent vaccines induces 100% protection in chickens that have been vaccinated against the deadly challenge with the virulent ND virus.

Conclusion: Both of bivalent vaccines are safe to use and provide good efficacy against virulent ND viruses, but bivalent vaccine B (with Montanide ISA70 adjuvant) shows better immune response than bivalent vaccine A (Marcol white mineral oil adjuvant).

Citing Articles

Evaluation of humoral immune response and milk antibody transfer in calves and lactating cows vaccinated with inactivated H5 avian influenza vaccine.

Abousenna M, Shafik N, Abotaleb M Sci Rep. 2025; 15(1):4637.

PMID: 39920177 PMC: 11805999. DOI: 10.1038/s41598-025-87831-w.

References
1.
Zhao J, Yang H, Xu H, Ma Z, Zhang G . Efficacy of an inactivated bivalent vaccine against the prevalent strains of Newcastle disease and H9N2 avian influenza. Virol J. 2017; 14(1):56. PMC: 5356287. DOI: 10.1186/s12985-017-0723-7. View

2.
Ali Z, Hassan M, Ali Hussein H, Ahmed B, Sanousi A . Protective efficacy of combined trivalent inactivated ISA 71 oil adjuvant vaccine against avian influenza virus subtypes (H9N2 and H5N1) and Newcastle disease virus. Vet World. 2017; 10(10):1212-1220. PMC: 5682266. DOI: 10.14202/vetworld.2017.1212-1220. View

3.
Kilany W, Bazid A, Ali A, El-Deeb A, Zain El-Abideen M, Sayed M . Comparative Effectiveness of Two Oil Adjuvant-Inactivated Avian Influenza H9N2 Vaccines. Avian Dis. 2016; 60(1 Suppl):226-31. DOI: 10.1637/11145-050815-Reg. View

4.
Garcon N, Morel S, Didierlaurent A, Descamps D, Wettendorff M, Van Mechelen M . Development of an AS04-adjuvanted HPV vaccine with the adjuvant system approach. BioDrugs. 2011; 25(4):217-26. DOI: 10.2165/11591760-000000000-00000. View

5.
Mosleh N, Dadras H, Asasi K, Taebipour M, Tohidifar S, Farjanikish G . Evaluation of the timing of the co-infection on pathogenecity of H9N2 avian influenza virus in broiler chickens. Iran J Vet Res. 2017; 18(2):86-91. PMC: 5534249. View