Track topics on Twitter Track topics that are important to you
The emerging porcine circovirus type 3 (PCV3) has been reported in Chinese swine herds since 2017. We performed a nationwide investigation on the prevalence of PCV3 in pig breeding farms and slaughterhouses in China. A total of 4040 tonsil samples were collected from 89 farms in 25 provinces, and 1419 lymph node samples were collected from 50 slaughterhouses in 27 provinces. The PCR results showed that in pig breeding farms, the positive rate was 41.6% (37/89) at the farm level and 5.0% (201/4040) at the individual level. In the slaughterhouses, the positive rate was 62.0% (31/50) at the farm level and 8.0% (114/1419) at the individual level. The PCR-positive samples were further sequenced, and 19 new PCV3 virus isolates were identified. The complete genomes of the 19 virus isolates showed 97.4-99.7% nucleotide identity with other PCV3 isolates. The phylogenetic analysis revealed that the 19 isolates were divided into PCV3a and PCV3b genotype clusters based on the PCV3 complete genome sequences. This study indicated that PCV3 has spread extensively in both pig breeding farms and slaughterhouses. The positive rate of PCV3 was higher in eastern China compared to other regions in China. Furthermore, this study will help us understand the prevalence and genetic variation of PCV3 in Chinese swine herds. This article is protected by copyright. All rights reserved.
This article was published in the following journal.
Name: Transboundary and emerging diseases
PCV2 is globally spread pathogen involved in in a number of diseases (PCVD). Commonly used vaccines against PCV2 are proved to be highly efficacious. The role of recently discovered PCV3 for pig healt...
Porcine circovirus type 3 (PCV3) is an emerging circovirus species associated with several diseases. The study aimed to investigate the frequency of porcine circovirus 3 (PCV3) and its coinfection wit...
Porcine circovirus 3 (PCV3) is a newly identified virus that belongs to the genus Circovirus in the family Circoviridae. Since the first identification of PCV3 in domestic swine in 2016 in the USA, ex...
The development of a rapid, specific, and sensitive SYBR Green I-based duplex real-time quantitative PCR assay is described for the simultaneous detection of porcine epidemic diarrhea virus (PEDV) and...
Porcine circovirus 3 (PCV3), as a newly emerged circovirus, is widely distributed in pig populations worldwide. Co-infection of PCV2 and PCV3 has been reported frequently in clinical samples. In the p...
EGAST 2008 is a prospective, non interventional, multicentric study (approximately 2000 isolates from 15- 20 sites). Objectives: - Comparison of antimicrobial susceptibility usi...
Primary objectives: 1. To investigate the prevalence of azole resistance in Aspergillus clinical isolates collected in participating hospitals in Taiwan 2. To investigate ...
This study is to observe the carriage rate ofStreptococcus pneumoniae (S.p.), Haemophilus influenzae type b (Hib) and Moraxella catarrhalis （M.Cat） in healthy Chinese children aged 12-...
This study focus on the genetic changes of B. pertussis clinical isolates. For this panels of B. pertussis isolates has been collected during four periods in different European countries.
The neonatal pig islets will be used as donor culturing with our modified culture medium. At the same time the autologous T regulatory cells will be used to induce specific immune toleranc...
A genus of the family CIRCOVIRIDAE that infects SWINE; PSITTACINES; and non-psittacine BIRDS. Species include Beak and feather disease virus causing a fatal disease in psittacine birds, and Porcine circovirus causing postweaning multisystemic wasting syndrome in pigs (PORCINE POSTWEANING MULTISYSTEMIC WASTING SYNDROME).
A worldwide emerging disease of weaned piglets first recognized in swine herds in western Canada in 1997. This syndrome is characterized by progressive weight loss, rapid (tachypnea) and difficult (dyspnea) breathing, and yellowing of skin. PMWS is caused by PORCINE CIRCOVIRUS infection, specifically type 2 or PCV-2.
Species of ENTEROVIRUS causing mild to severe neurological diseases among pigs especially in Eastern Europe. Mild strains are also present in Canada, U.S., and Australia. Specific species include Porcine enterovirus A and Porcine enterovirus B.
A mutant strain of TRANSMISSIBLE GASTROENTERITIS VIRUS causing mild or subclinical respiratory infections in young SWINE. It may also play a role in post-weaning porcine respiratory disease complex, especially when combined with other respiratory agents.
A genus in the family PICORNAVIRIDAE that can cause polioencephalomyelitis in pigs. The type species Porcine teschovirus is comprised of multiple strains.
Polymerase Chain Reaction (PCR)
PCR (Polymerase Chain Reaction) uses the ability of DNA polymerase (enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA. These enzymes are essential to DNA replication and usually work in pairs to create two ident...
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...