Birds in the affected flock were found to show growth retardation and beak atrophy with tongue protrusions. In 2019, SBDS was observed for the first time in Poland in eight farms of Pekin ducks. The disease is caused by the infection of ducks with a genetic variant of goose parvovirus-novel goose parvovirus (nGPV). Short beak and dwarfism syndrome (SBDS), which was previously identified only in mule ducks, is now an emerging disease of Pekin ducks in China and Egypt. One positive selection site of the capsid protein was detected. Recombination analysis suggested that the Vietnam/VNUA-26/2021 strain was generated by a recombination event. The Vietnamese NGPV group was closely related to the Chinese group. ![]() Phylogenetic analysis of the near-complete genomes indicated that the waterfowl circulating in northern Vietnam belonged to the novel goose parvovirus (NGPV) group. Among the four Vietnamese parvovirus genomes, nucleotide identities were from 99.29% to 99.87%. The lengths of the four Vietnamese waterfowl parvovirus genomes identified were 4750 nucleotides. 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 rate of the parvovirus genome detection in ducks aged 2-4 weeks (37.04%) was significantly (p 4 weeks (16.30%). Of the 38 farms tested, 14 (36.84%) were positive for the waterfowl parvovirus genome. Twenty-six (20%) samples were positive for the parvovirus infection, based on polymerase chain reaction analysis. Abstract: In total, 130 tissue-pooled samples collected from ducks in some provinces/cities in north Vietnam were examined for waterfowl parvovirus genome identification. The viral strains were clustered with another novel goose parvovirus from China. ![]() The results revealed that waterfowl parvovirus was circulating among ducks at a moderately positive rate. This study investigated epidemiological characteristics and the further genetic characterization of the viral genome in ducks farmed in northern Vietnam. In Vietnam, information is limited on epidemiological and genetic characterization of the viral genome. Simple Summary: Waterfowl parvoviruses are highly contagious lethal pathogens that cause economic loss in the duck production industry. ![]() To the best of our knowledge, this can be considered the first record of NGPV infections Strains and close identity with Chinese strains of NGPV, and low identity with classic GPV and MDPV Partial gene sequence of the VP1 gene showed high amino acids identity among isolated NGPV was successful on primary cell culture of embryonated duck liver cells with a clear cytopathicĮ�ect. Despite low recorded mortality rate (20%), morbidity rate was high (70%), but theĮconomic losses were remarkable as a result of retarded growth and low performance. ![]() Ten mule and pekin duck farms were investigated for parvovirus in threeĮgyptian provinces. Was clinically characterized by deformity in beaks and retarded growth, called short beaks andĭwarfism syndrome (SBDS). Goose parvovirus (NGPV), which causes characteristic syndrome in young ducklings. Variant strain of Muscovy duck parvovirus (MDPV) and goose parvovirus (GPV) was named novel Derzsy’s disease causes disastrous losses in domestic waterfowl farms.
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