Assessing the Seroprevalence Against Avian Pneumovirus and Ornithobacterium rhinotracheale in Broilers in Uruguay

Suzuki, Kuniaki; Petruccelli, Miguel Ángel; Rodríguez, Gabriel; Trenchi, G.; Giossa, G.; Trenchi, H.

doi:10.3923/ijps.2010.490.494

Cited by 1 publication

(1 citation statement)

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“…Based on the serological assay, 37.6% of the chickens harbored antibodies against aMPV and the detection rates varied widely (0.0-95.7%) between the 14 investigated provinces. Although fluctuations in detection rates between geographical locations have been reported in other countries [36,37], the main reason that some northern provinces had no serologically positive samples might largely be due to the small sample sizes, which did not accurately reflect the exposure status. Of the sero-positive rates at the farm level, the average rates of 61.2% positive farms in this study was considered to be an average rate compared to other countries, such as 21.7-35.2% in Egypt [38], 30.4% in Uruguay [39], 97.3% in Korea [40], and 100% in Trinidad & Tobago [41].…”

Section: The Detection Rates Of Ampv Infectionsmentioning

confidence: 86%

Serological and Molecular Characterization of Avian Metapneumovirus in Chickens in Northern Vietnam

Nguyen

Chung

et al. 2021

Veterinary Sciences

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Avian Metapneumovirus (aMPV) is a causative agent of respiratory disease complex in turkeys and chickens that has recently been detected in Vietnam. Due to its novelty, this study was conducted to elucidate the distribution of aMPV in several provinces in northern Vietnam. By the application of Enzyme-Linked Immunosorbent Assay (ELISA) and nested Reverse Transcription-Polymerase Chain Reaction (RT-PCR), this study demonstrated the circulation of aMPV in 12 out of 14 cities/provinces with positive rates of 37.6% and 17.2%, respectively. All nested RT-PCR positive samples were aMPV subgroup B. By pairing the detection results with age groups, it was observed that aMPV infections occurred in chickens of all ages. Additionally, by genetic characterization, aMPV strains were demonstrated to not be attenuated vaccine viruses and to belong to at least two genetic clades. Overall, the obtained results provided insights into the prevalence of aMPV and indicated a greater complexity of respiratory diseases in chickens in Vietnam.

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