Identification and Molecular Characterization of Newcastle Disease Virus Circulates in some districts in Aceh

Autor: M Daud AK, Surachmi Setiyaningsih, Idwan Sudirman
Jazyk: English<br />Indonesian
Rok vydání: 2019
Předmět:
Zdroj: Jurnal Kedokteran Hewan, Vol 13, Iss 1 (2019)
Druh dokumentu: article
ISSN: 1978-225X
2502-5600
DOI: 10.21157/j.ked.hewan.v13i1.5832
Popis: The objectives of this study were to assess the diversity of Newcastle Disease Virus (NDV) isolates; to detect and isolate NDV from poultry; and to identify and characterize NDV by serological and molecular assays. A total of 84 cloacal-oropharynx isolates of poultry was collected from privately owned poultries and poultry markets from 12 districts in Aceh Besar and Banda Aceh. Screening was performed by real time reverse transcriptation-polymerase chain reaction (rRT-PCR) to 15 isolates of poultry. Selected isolates were inoculated in 9-11 days old embryonated specific pathogen free (SPF) eggs and showed positive hemagglutination (HA). Characterization was performed through hemagglutination inhibition (HI) test using Komarov and Hitchner B1 antisera, elution test, RT-PCR and realtime RT-PCR fusion (F). All isolates had a higher affinity to Komarov antisera (titer up to 4 log), indicating virulent strain. This was supported by elution test which showed that 93.66% isolates were virulent and 6 % non-virulent. In conclusion, RT-PCR can detect Matrix gene from 15 isolates (100%), while Fusion gene only detected from 11 isolates (73.3%). rRT-PCR is more capable of detecting antigenic diversity compared to RT-PCR.
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