نتایج جستجو برای: circoviridae
تعداد نتایج: 61 فیلتر نتایج به سال:
The family Circoviridae comprises viruses with small, circular, single-stranded DNA (ssDNA) genomes, including the smallest known animal viruses. Members of this family are classified into two genera, Circovirus and Cyclovirus, which are distinguished by the position of the origin of replication relative to the coding regions and the length of the intergenic regions. Within each genus, the spec...
Circoviridae family contains two genuses. Chicken anaemia virus (CAV) is the only member of the genus Gyrovirus, while the genus Circovirus currently comprises porcine circoviruses type 1 and 2 (PCV1, PCV2), psittacine beak and feather disease virus (BFDV), pigeon circovirus (PiCV), canary circovirus (CaCV), goose circovirus (GoCV) and duck circovirus (DuCV) [24]. Members of circoviridae family...
The potential dependence of virus populations on soil types was examined by electron microscopy, and the total abundance of virus particles in four soil types was similar to that previously observed in soil samples. The four soil types examined differed in the relative abundances of four morphological groups of viruses. Machair, a unique type of coastal soil in western Scotland and Ireland, dif...
A fox circovirus was identified in serum samples from foxes with unexplained neurologic signs by using viral metagenomics. Fox circovirus nucleic acid was localized in histological lesions of the cerebrum by in situ hybridization. Viruses from the family Circoviridae may have neurologic tropism more commonly than previously anticipated.
Dragonfly cyclovirus (DfCyV), a new species of ssDNA virus discovered using viral metagenomics in dragonflies (family Libellulidae) from the Kingdom of Tonga. Metagenomic sequences of DfCyV were similar to viruses of the recently proposed genus Cyclovirus within the family Circoviridae. Specific PCRs resulted in the recovery of 21 DfCyV genomes from three dragonfly species (Pantala flavescens, ...
Circoviruses are highly prevalent porcine and avian pathogens. In recent years, novel circular ssDNA genomes have recently been detected in a variety of fecal and environmental samples using deep sequencing approaches. In this study the identification of genomes of novel circoviruses and cycloviruses in feces of insectivorous bats is reported. Pan-reactive primers were used targeting the conser...
Cycloviruses, small ssDNA viruses of the Circoviridae family, have been identified in the cerebrospinal fluid from symptomatic human patients. One of these species, cyclovirus-Vietnam (CyCV-VN), was shown to be restricted to central and southern Vietnam. Here we report the detection of CyCV-VN species in stool samples from pigs and humans from Africa, far beyond their supposed limited geographi...
Porcine circovirus type 2 (PCV2) is a small, non-enveloped, single-stranded DNA virus in the genus Circovirus within the family Circoviridae.1 It has been incriminated as a major causative agent of postweaning multisystemic wasting syndrome (PMWS), which is known as PCV2-associated diseases (PCVAD);2,3 PCVAD is considered to be an economically important global issue. Most Korean swine farms (95...
In 2013, studies conducted on human clinical samples in Vietnam and Malawi indicated for the first time that cycloviruses might be associated with central nervous system infection in humans. A definitive causal link to neurological diseases was not established and would require further studies. Cycloviruses belong to the Circoviridae family together with the genera circovirus and gyrovirus. The...
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