biostudies-literatureDong HVFaculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailandthe Kasetsart University Research and Development Institute (KURDI) Bangkok, ThailandNational Research Council of Thailand (NRCT): R. Thanawongnuwech NRCT Senior scholar 2022the Office of the Ministry of Higher Education, Science, Research, and Innovation; and the Thailand Science Research and Inno-vation through the Kasetsart University Reinventing University Program 20222846https://www.ebi.ac.uk/biostudies/studies/S-EPMC9597789biostudies-literatureUnknown12(20)In total, 130 tissue-pooled samples collected from ducks in some provinces/cities in north Vietnam were examined for waterfowl parvovirus genome identification. Twenty-six (20%) samples were positive for the parvovirus infection, based on polymerase chain reaction analysis. Of the 38 farms tested, 14 (36.84%) were positive for the waterfowl parvovirus genome. The rate of the parvovirus genome detection in ducks aged 2−4 weeks (37.04%) was significantly (p < 0.05) higher than that at ages <2 weeks (9.09%) and >4 weeks (16.30%). The positive rate on medium-scale farms (9.36%) was significantly (p < 0.05) lower than for small-scale (31.03%) and large-scale (29.73%) farms. The lengths of the four Vietnamese waterfowl parvovirus genomes identified were 4750 nucleotides. Among the four VietnamesAnimals : an open access journal from MDPIEpidemiological Analysis and Genetic Characterization of Parvovirus in Ducks in Northern Vietnam Reveal Evidence of Recombination.PMC9597789[RUP2565/Act-2_CASAF PD012]#N42A650553KURDI(FF(KU16.66))Choowongkomon KDong HVNguyen HTTTran GTHNguyen TMTrinh DQLe VPRattanasrisomporn JfalseEpidemiological Analysis and Genetic Characterization of Parvovirus in Ducks in Northern Vietnam Reveal Evidence of Recombination.In total, 130 tissue-pooled samples collected from ducks in some provinces/cities in north Vietnam were examined for waterfowl parvovirus genome identification. Twenty-six (20%) samples were positive for the parvovirus infection, based on polymerase chain reaction analysis. Of the 38 farms tested, 14 (36.84%) were positive for the waterfowl parvovirus genome. The rate of the parvovirus genome detection in ducks aged 2−4 weeks (37.04%) was significantly (p < 0.05) higher than that at ages <2 weeks (9.09%) and >4 weeks (16.30%). The positive rate on medium-scale farms (9.36%) was significantly (p < 0.05) lower than for small-scale (31.03%) and large-scale (29.73%) farms. The lengths of the four Vietnamese waterfowl parvovirus genomes identified were 4750 nucleotides. Among the four Vietnames2022-01-01T00:00:00Z2022 Oct2025-04-19T12:05:12.332Z2024-11-07T14:06:15.687ZS-EPMC95977893629023210.3390/ani12202846