Veterinaria Medika
ISSN 1979-1305
Vol. 4 / No. 1 / Published : 2011-02
Order : 5, and page :19 - 24
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Original Article :
Avian influenza h5n1 vaccine candidate for chicken from east java isolate virus
Author :
- Ernawati, Rahayu *1
- Poetranto, E.D*2
- Hanief R.M*3
- Fakultas Kedokteran Hewan Universitas Airlangga
- Mahasiswa Program Doktor Pascasarjana Unair
- Mahasiswa Program Magister Pascasarjana Unair
Abstract :
Highly Pathogenic Avian Influenza (HPAI) H5N1 virus is an ongoing public health and socio-economic challenge, particularly in Indonesia. Avian Influenza (H5N1) is now endemic in poultry in many countries, and represents a major pandemic threat. Now, the evolution of H5N1 virus in Indonesia has evolved with genetic variations affecting virulence, drug-resistance, and adaptation to new host species. The reassortment events leading to high genetic diversity in the region, and factors responsible for virus spread. Development of H5N1-specific vaccine may be become a good strategy for the prevention or controlling the spread of AI. This study was aimed to find avaccine candidate for Avian Influenza subtype H5N1 which has a good quality, safe, homolog genetically and antigenically with the virus in East Java. The sample viruses were isolated from village chicken in traditional market at Surabaya, Jombang, Pare, and Kediri. Suspensions in antibiotic solution of cloacal swabs (or organs), taken from village chicken, inoculated into the allantoic cavity of 9 to 11-day-old embryonating chicken eggs. The eggs areincubated at 37°C (range 35–39°C) for 4–7 days. The allantoic fluid of any eggs containing dead or dying embryos during the incubation and all eggs at the end of the incubation period are tested for the presence of haemagglutinating activity by HA and HI test. The presence of Hemagglutinin gene which are common to all influenza A viruses can be confirmed by One Step PCR using 4 pairs of specific primers. Then, the product being purificated and sequenced to get the hemagglutinin nucleotide data. The data were analysed for homology relationship. The antigenic test against confirmed antisera panel was conducted to observed the antigenic potential from the isolate. The study results two isolates, Jombang and Pare isolate. The result of this study show that the isolate have a high homology ofhemagglutinin gene with another virus isolate (A/chicken/WestJava/Tasiksol/2006) which have wide covered spatial area. The antigenic test showed the same result, but Pare isolate have much wider covered area because it can react with all of antigenic test panel antisera.
Keyword :
Vaccine, Avian Influenza (H5N1), Chicken, Hemagglutinin, Homology,
References :
Chen H, G. Deng, Z. Li, G. Tiam, Y. Li, P. Jiao, L. Zhang, Z. Liu, R.G. Webster, and K. Yu.,(2004) The evolution of H5N1 influenza viruses in ducks in Southern China. United States : Microbiology 101 : 10451-10457
Fouchier, R.A.M., V. Munster, A. Wallenstens, T.M. Bestebroer, S. Hersfst, D. Smith, G.F. Rimmelzwaa,(2005) Characterization of novel influenza A virus hemagglutinin subtype (H16) obtained black-headed gulls United States : J Virol 79 (5) : 2814-2822
Rantam, F.A.,(2005) Virologi Surabaya : Airlangga University Press
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