scholarly journals Age-specific incidence of herpes simplex infection in the light of clinical appearance

2021 ◽  
Vol 97 (2) ◽  
pp. 83-92
Author(s):  
Adriána Evelin Csernus ◽  
◽  
Annamária Rózsa ◽  
Rolland Gyulai
Keyword(s):  
Herpes Simplex ◽  
Clinical Manifestations ◽  
Treatment Strategies ◽  
Asymptomatic Infection ◽  
Adequate Treatment ◽  
Clinical Appearance ◽  
Diagnostic Problems ◽  
Simplex Infection ◽  
Simplex Virus ◽  
Hsv 1

Herpes simplex virus (HSV) infection is extremely common in both children and adults. HSV has two serotypes, HSV-1 primarily causes orolabial while HSV-2 anogenital symptoms. In recent decades there has been a change in the predilection to affected anatomical regions in both serotypes, participation of HSV-1 serotype in genital infections is increasing. The primary acquisition of HSV-1 has increasingly shifted from early childhood to young adulthood over the past years. Asymptomatic infection and virulence factors are crucial in the spread of the virus. Cutaneous symptoms, erosions and crusted lesions after vesicular stage present various differential diagnostic problems in the involved regions. Early diagnosis and timely adequate therapy in serious cases are essential as well as suppressive treatment of recurrent symptoms. Several clinical trials are underway to develop more effective antivirals. Vaccination against HSV would be a key to prevent latent infections, transmission and reactivation. The authors present characteristics of HSV, age-specific clinical manifestations, differential diagnostic problems and adequate treatment strategies.

Fatal Neonatal Herpes Simplex Infection Likely from Unrecognized Breast Lesions

2015 ◽  
Vol 32 (1) ◽  
pp. 86-88 ◽  
Author(s):  
Scott S. Field
Keyword(s):  
Herpes Simplex ◽  
Breast Lesions ◽  
Neonatal Herpes ◽  
Lactation Consultant ◽  
Simplex Infection ◽  
Care Workers ◽  
Neonatal Herpes Simplex ◽  
Simplex Virus ◽  
Hsv 1

Type 1 herpes simplex virus (HSV-1) is very prevalent yet in rare circumstances can lead to fatal neonatal disease. Genital acquisition of type 2 HSV is the usual mode for neonatal herpes, but HSV-1 transmission by genital or extragenital means may result in greater mortality rates. A very rare scenario is presented in which the mode of transmission was likely through breast lesions. The lesions were seen by nurses as well as the lactation consultant and obstetrician in the hospital after delivery of the affected baby but not recognized as possibly being caused by herpes. The baby died 9 days after birth with hepatic failure and disseminated intravascular coagulation. Peripartum health care workers need to be aware of potential nongenital (including from the breast[s]) neonatal herpes acquisition, which can be lethal.

scholarly journals Whole genome sequencing of Herpes Simplex Virus 1 directly from human cerebrospinal fluid reveals selective constraints in neurotropic viruses

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Florent Lassalle ◽  
Mathew A Beale ◽  
Tehmina Bharucha ◽  
Charlotte A Williams ◽  
Rachel J Williams ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Direct Sequencing ◽  
Clinical Manifestations ◽  
Skin Lesions ◽  
Target Enrichment ◽  
Mortality And Morbidity ◽  
Simplex Virus ◽  
Hsv 1

Abstract Herpes Simplex Virus type 1 (HSV-1) chronically infects over 70 per cent of the global population. Clinical manifestations are largely restricted to recurrent epidermal vesicles. However, HSV-1 also leads to encephalitis, the infection of the brain parenchyma, with high associated rates of mortality and morbidity. In this study, we performed target enrichment followed by direct sequencing of HSV-1 genomes, using target enrichment methods on the cerebrospinal fluid (CSF) of clinical encephalitis patients and from skin swabs of epidermal vesicles on non-encephalopathic patients. Phylogenetic analysis revealed high inter-host diversity and little population structure. In contrast, samples from different lesions in the same patient clustered with similar patterns of allelic variants. Comparison of consensus genome sequences shows HSV-1 has been freely recombining, except for distinct islands of linkage disequilibrium (LD). This suggests functional constraints prevent recombination between certain genes, notably those encoding pairs of interacting proteins. Distinct LD patterns characterised subsets of viruses recovered from CSF and skin lesions, which may reflect different evolutionary constraints in different body compartments. Functions of genes under differential constraint related to immunity or tropism and provide new hypotheses on tissue-specific mechanisms of viral infection and latency.

scholarly journals An epidemiologic study of herpes simplex virus type 1 and 2 infection in Japan based on type-specific serological assays

1998 ◽  
Vol 120 (2) ◽  
pp. 179-186 ◽  
Author(s):  
M. HASHIDO ◽  
F. K. LEE ◽  
A. J. NAHMIAS ◽  
H. TSUGAMI ◽  
S. ISOMURA ◽  
...  
Keyword(s):  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Pregnant Women ◽  
Virus Type ◽  
Herpes Simplex Virus Type ◽  
Epidemiologic Study ◽  
Clinical Manifestations ◽  
Simplex Virus ◽  
Hsv 1

A seroepidemiologic study of herpes simplex virus type 1 (HSV-1) and 2 (HSV-2) was performed on Japanese adults. Serum samples collected between 1985–9 from a total of 536 healthy adults, female prostitutes, males with sexually transmitted diseases (STD), homosexual men, and pregnant women were studied by immunodot assays using HSV type-specific antigens, glycoproteins G (gG1 and gG2). HSV-1 infections correlated mostly with age and was widely prevalent among subjects <40 years. HSV-2 prevalence varied greatly among subgroups defined by sexual activity and was associated with risk behaviours for prostitution, infection with STD, and homosexual activity. HSV-2 seroprevalence was highest among prostitutes (80%), lowest among pregnant women (7 %), and intermediate in STD patients (23%) and homosexuals (24%). Because HSV-1 infection during childhood has been decreasing, primary genital HSV-2 infection, with its higher frequency of clinical manifestations, will become a greater burden to the public health in Japan.

scholarly journals Whole genome sequencing of Herpes Simplex Virus 1 directly from human cerebrospinal fluid reveals selective constraints in neurotropic viruses

2019 ◽  
Author(s):  
Florent Lassalle ◽  
Mathew A Beale ◽  
Tehmina Bharucha ◽  
Charlotte A Williams ◽  
Rachel J Williams ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Direct Sequencing ◽  
Clinical Manifestations ◽  
Skin Lesions ◽  
Target Enrichment ◽  
Mortality And Morbidity ◽  
Simplex Virus ◽  
Hsv 1

AbstractHerpes Simplex Virus type 1 (HSV-1) chronically infects over 70% of the global population. Clinical manifestations are largely restricted to recurrent epidermal vesicles. However, HSV-1 also leads to encephalitis, the infection of the brain parenchyma, with high associated rates of mortality and morbidity. In this study, we performed target enrichment followed by direct sequencing of HSV-1 genomes, using target enrichment methods on the cerebrospinal fluid (CSF) of clinical encephalitis patients and from skin swabs of epidermal vesicles on non-encephalopathic patients. Phylogenetic analysis revealed high inter-host diversity and little population structure. By contrast, samples from different lesions in the same patient clustered with similar patterns of allelic variants. Comparison of consensus genome sequences shows HSV-1 has been freely recombining, except for distinct islands of linkage disequilibrium (LD). This suggests functional constraints prevent recombination between certain genes, notably those encoding pairs of interacting proteins. Distinct LD patterns characterised subsets of viruses recovered from CSF and skin lesions, which may reflect different evolutionary constraints in different body compartments. Functions of genes under differential constraint related to immunity or tropism and provide new hypotheses on tissue-specific mechanisms of viral infection and latency.

Neonatal Herpes Simplex Infection Possibly Acquired via Maternal Breast Milk

PEDIATRICS ◽  
1979 ◽  
Vol 63 (2) ◽  
pp. 250-251
Author(s):  
Lisa M. Dunkle ◽  
Rose Rita Schmidt ◽  
Dennis M. O'Connor
Keyword(s):  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Breast Milk ◽  
Neonatal Herpes ◽  
Simplex Infection ◽  
History Of ◽  
Neonatal Herpes Simplex ◽  
Simplex Virus ◽  
Hsv 1

A newborn infant with disseminated herpes simplex virus type 1 (HSV-1) infection was determined serologicallv to have acquired the infection postnatally; his mother was found to have HSV-1 in her breast milk but had no history of genital lesions and negative viral cultures of cervix, vagina, and throat. We suggest that HSV-infected maternal breast milk may be a source of this infection for susceptible infants.

scholarly journals Herpes Simplex Virus Re-Activation in Patients with SARS-CoV-2 Pneumonia: A Prospective, Observational Study

2021 ◽  
Vol 9 (9) ◽  
pp. 1896
Author(s):  
Erica Franceschini ◽  
Alessandro Cozzi-Lepri ◽  
Antonella Santoro ◽  
Erica Bacca ◽  
Guido Lancellotti ◽  
...  
Keyword(s):  
Herpes Simplex ◽  
Prospective Observational Study ◽  
Clinical Manifestations ◽  
Severe Pneumonia ◽  
Increased Risk ◽  
Single Center Study ◽  
High Incidence ◽  
High Doses ◽  
Simplex Virus ◽  
Hsv 1

Background: Herpes simplex 1 co-infections in patients with COVID-19 are considered relatively uncommon; some reports on re-activations in patients in intensive-care units were published. The aim of the study was to analyze herpetic re-activations and their clinical manifestations in hospitalized COVID-19 patients, performing HSV-1 PCR on plasma twice a week. Methods: we conducted a prospective, observational, single-center study involving 70 consecutive patients with severe/critical SARS-CoV-2 pneumonia tested for HSV-1 hospitalized at Azienda Ospedaliero-Universitaria of Modena. Results: of these 70 patients, 21 (30.0%) showed detectable viremia and 13 (62%) had clinically relevant manifestations of HSV-1 infection corresponding to 15 events (4 pneumonia, 5 herpes labialis, 3 gingivostomatitis, one encephalitis and two hepatitis). HSV-1 positive patients were more frequently treated with steroids than HSV-1 negative patients (76.2% vs. 49.0%, p = 0.036) and more often underwent mechanical ventilation (IMV) (57.1% vs. 22.4%, p = 0.005). In the unadjusted logistic regression analysis, steroid treatment, IMV, and higher LDH were significantly associated with an increased risk of HSV1 re-activation (odds ratio 3.33, 4.61, and 16.9, respectively). The association with the use of steroids was even stronger after controlling for previous use of both tocilizumab and IMV (OR = 5.13, 95% CI:1.36–19.32, p = 0.016). The effect size was larger when restricting to participants who were treated with high doses of steroids while there was no evidence to support an association with the use of tocilizumab Conclusions: our study shows a high incidence of HSV-1 re-activation both virologically and clinically in patients with SARS-CoV-2 severe pneumonia, especially in those treated with steroids.

Assembly of VP26 in herpes simplex virus-1 capsid implicated by 3-D structure of recombinant capsid

1995 ◽  
Vol 53 ◽  
pp. 840-841
Author(s):  
Z. Hong Zhou ◽  
Jing He ◽  
Joanita Jakana ◽  
J. D. Tatman ◽  
Frazer J. Rixon ◽  
...  
Keyword(s):  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
3D Structure ◽  
Structure Study ◽  
Herpes Simplex Virus 1 ◽  
Shell Proteins ◽  
Life Threatening ◽  
Infected Cells ◽  
Simplex Virus ◽  
Hsv 1

Herpes simplex virus-1 (HSV-1) is a ubiquitous virus which is implicated in diseases ranging from self-curing cold sores to life-threatening infections. The 2500 Å diameter herpes virion is composed of a glycoprotein spike containing, lipid envelope, enclosing a protein layer (the tegument) in which is embedded the capsid (which contains the dsDNA genome). The B-, and A- and C-capsids, representing different morphogenetic stages in HSV-1 infected cells, are composed of 7, and 5 structural proteins respectively. The three capsid types are organized in similar T=16 icosahedral shells with 12 pentons, 150 hexons, and 320 connecting triplexes. Our previous 3D structure study at 26 Å revealed domain features of all these structural components and suggested probable locations for the outer shell proteins, VP5, VP26, VP19c and VP23. VP5 makes up most of both pentons and hexons. VP26 appeared to bind to the VP5 subunit in hexon but not to that in penton.

scholarly journals Herpes simplex virus 1 targets IRF7 via ICP0 to limit type I IFN induction

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
David Shahnazaryan ◽  
Rana Khalil ◽  
Claire Wynne ◽  
Caroline A. Jefferies ◽  
Joan Ní Gabhann-Dromgoole ◽  
...  
Keyword(s):  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Immune Responses ◽  
Tear Film ◽  
Cell Protein ◽  
Type I ◽  
Type I Ifn ◽  
Herpes Simplex Virus 1 ◽  
Simplex Virus ◽  
Hsv 1

AbstractHerpes simplex keratitis (HSK), caused by herpes simplex virus type 1 (HSV-1) infection, is the commonest cause of infectious blindness in the developed world. Following infection the virus is initially suspended in the tear film, where it encounters a multi-pronged immune response comprising enzymes, complement, immunoglobulins and crucially, a range of anti-viral and pro-inflammatory cytokines. However, given that HSV-1 can overcome innate immune responses to establish lifelong latency throughout a susceptible individual’s lifetime, there is significant interest in understanding the mechanisms employed by HSV-1 to downregulate the anti-viral type I interferon (IFN) mediated immune responses. This study aimed to investigate the interactions between infected cell protein (ICP)0 and key elements of the IFN pathway to identify possible novel targets that contribute to viral immune evasion. Reporter gene assays demonstrated the ability of ICP0 to inhibit type I IFN activity downstream of pathogen recognition receptors (PRRs) which are known to be involved in host antiviral defences. Further experiments identified interferon regulatory factor (IRF)7, a driver of type I IFN, as a potential target for ICP0. These findings increase our understanding of the pathogenesis of HSK and suggest IRF7 as a potential therapeutic target.

scholarly journals Antiviral Activity of the G-Quadruplex Ligand TMPyP4 against Herpes Simplex Virus-1

Viruses ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 196
Author(s):  
Sara Artusi ◽  
Emanuela Ruggiero ◽  
Matteo Nadai ◽  
Beatrice Tosoni ◽  
Rosalba Perrone ◽  
...  
Keyword(s):  
Herpes Simplex Virus ◽  
Dna Replication ◽  
Herpes Simplex ◽  
Antiviral Activity ◽  
Herpes Simplex Virus 1 ◽  
Tem Analysis ◽  
Infected Cells ◽  
Simplex Virus ◽  
Hsv 1

The herpes simplex virus 1 (HSV-1) genome is extremely rich in guanine tracts that fold into G-quadruplexes (G4s), nucleic acid secondary structures implicated in key biological functions. Viral G4s were visualized in HSV-1 infected cells, with massive virus cycle-dependent G4-formation peaking during viral DNA replication. Small molecules that specifically interact with G4s have been shown to inhibit HSV-1 DNA replication. We here investigated the antiviral activity of TMPyP4, a porphyrin known to interact with G4s. The analogue TMPyP2, with lower G4 affinity, was used as control. We showed by biophysical analysis that TMPyP4 interacts with HSV-1 G4s, and inhibits polymerase progression in vitro; in infected cells, it displayed good antiviral activity which, however, was independent of inhibition of virus DNA replication or entry. At low TMPyP4 concentration, the virus released by the cells was almost null, while inside the cell virus amounts were at control levels. TEM analysis showed that virus particles were trapped inside cytoplasmatic vesicles, which could not be ascribed to autophagy, as proven by RT-qPCR, western blot, and immunofluorescence analysis. Our data indicate a unique mechanism of action of TMPyP4 against HSV-1, and suggest the unprecedented involvement of currently unknown G4s in viral or antiviral cellular defense pathways.

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