Pseudorabies virus (PRV) is a double-stranded, DNA-based swine virus with a genome approximating 150 kb in size. PRV has many nonessential genes which can be replaced with genes encoding heterologous antigens but without deleterious effects on virus propagation. Recombinant PRVs expressing both native and foreign antigens are able to stimulate immune responses. In this paper, we review the curr...

Introduction African swine fever virus (ASFV), pseudorabies virus (Aujrszky’s disease virus, ADV) and porcine circovirus type 2 (PCV-2) are some of the most dangerous DNA viruses causing high amounts of morbidity and mortality in commercial and backyard pig farms. Traditional diagnosis of porcine viral infections requires complex and lengthy combinations of virological and serological tests. Th...

Reactivation from latency results in transmission of neurotropic herpesviruses from the nervous system to body surfaces, referred to as anterograde axonal trafficking. The virus-encoded protein pUS9 promotes axonal dissemination by sorting virus particles into axons, but whether it is also an effector of fast axonal transport within axons is unknown. To determine the role of pUS9 in anterograde...

Varicella-zoster virus (VZV) encodes at least five glycoproteins, gpI to gpV. VZV gpV, M(r) 100K to 110K, is the product of VZV open reading frame (ORF) 14. VZV gpV is homologous to herpes simplex virus gC and pseudorabies virus gIII. To determine whether gpV is required for viral replication, we inserted a stop codon after the fifteenth codon of the ORF14 gene in a cosmid containing the gene. ...

Neural involvement following infections of influenza viruses can be serious. The neural transport of influenza viruses from the periphery to the central nervous system has been indicated by using mouse models. However, no direct evidence for neuronal infection has been obtained in vitro and the mechanisms of neural transmission of influenza viruses have not been reported. In this study, the tra...

A mutant of herpes simplex virus type 1 lacking both glycoprotein M and glycoprotein E was marginally compromised in terms of its in vitro growth characteristics. This finding is in marked contrast to a similar mutant of the related alphaherpesvirus, pseudorabies virus (A. R. Brack, J. M. Dijkstra, H. Granzow, B. G. Klupp, and T. C. Mettenleiter, J. Virol. 73:5364-5372, 1999), and suggests that...

A pseudorabies virus (PrV) mutant, deficient in the nonessential glycoprotein E (gE) and expressing the LacZ gene (gE- beta gal+ PrV), and its rescued virus were inoculated intranasally in mice. The median lethal dose of gE- beta gal+ PrV was similar to that of the parental Kaplan strain, but mice survived longer and did not develop symptoms of pseudorabies. In the nasal mucosa, gE- beta gal+ P...

Abstract Pseudorabies virus (PRV) is a double-stranded DNA with genome approximating 150 kb in size. PRV contains many non-essential genes that can be replaced encoding heterogenous antigens without affecting viral propagation. With the ability to induce cellular, humoral and mucosal immune responses host, considered an ideal potential live vector for generation of animal vaccines. In this revi...

Neurotropic alphaherpesviruses have become popular tools for transynaptic analysis of neural circuitry. It has also been demonstrated that coinfection with two viruses expressing unique reporters can be used to define more complicated circuitry. However, the coinfection studies reported to date have employed nonisogenic strains that differ in their invasive properties. In the present investigat...