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Journal of Medical Virology

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https://www.readbyqxmd.com/read/28322457/declining-antibody-levels-after-hepatitis-b-vaccination-in-down-syndrome-a-need-for-booster-vaccination
#1
N B Eijsvoogel, M I Hollegien, L A Bok, A Derksen-Lubsen, F Dikken, A C A P Leenders, A Pijning, E Post, M Wojciechowski, M Hilbink, E de Vries
We determined the anti-HBs titer in 227 children of all ages with Down syndrome (DS). Only 48.1% (95% CI: 35.1-61.3) of the DS children aged 7-10 years and 31.9% (95% CI: 22.1-43.6) of the DS children aged >10 years had a protective anti-HBs titer (≥10 IU/l). The geometric mean anti-HBs titer was significantly lower in the DS children; this suggests booster vaccination for HBV may be needed. This article is protected by copyright. All rights reserved.
March 21, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28321885/molecular-analysis-of-norovirus-in-specimens-from-children-enrolled-in-a-1982-1986-study-in-bel%C3%A3-m-brazil-a-community-based-longitudinal-study
#2
Jones Anderson Monteiro Siqueira, Edivaldo Costa Sousa Júnior, Alexandre da Costa Linhares, Yvone Benchimol Gabbay
Fecal specimens were collected during a longitudinal, community-based study in the city of Belém, North Brazil, that was conducted over 3 years (October 1982 to March 1986), in which 20 children were included from birth to 3 years of age. A total of 229 fecal samples were screened by real time RT-PCR targeting the junction region (ORF 1/2) of the norovirus (NoV) genome. NoV-positive samples were subjected to PCR and sequencing of the viral polymerase (ORF1) and viral protein 1 (VP1) genes (ORF2). The junction region was also sequenced to assess for recombination when ORF1 and ORF2 genotyping results were dissimilar...
March 20, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28316071/chlamydia-trachomatis-and-hpv-co-infections-in-hiv-negative-men-from-a-multi-ethnic-area-of-northern-italy-at-high-prevalence-of-cervical-malignancies
#3
Manola Comar, Silva Seraceni, Claudia Colli, Viviana Luska, Sara Morassut, Libera Clemente, Marina Drabeni, Gianmichele Moise, Francesco Fontana, Lorenzo Monasta, Barbara Suligoi
Chlamydia trachomatis and HPV coinfections in the male population are often a disregarded issue. We performed a study to evaluate the prevalence of such infections in heterosexual HIV negative men from a Northern Italy multi-ethnic area at high prevalence for cervical malignancies. Urethral swabs (US) or first-voided urine were evaluated retrospectively from 1317 patients attending Sexually Transmitted Infections (STI) clinic and from 3388 outpatients attending private clinics. Informations about participants' demographic characteristics and attributes of Chlamydia trachomatis, including chronic infection, and HPV genotypes testing, were collected...
March 18, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28303641/myalgic-encephalomyelitis-chronic-fatigue-syndrome-and-gulf-war-illness-patients-exhibit-increased-humoral-responses-to-the-herpesviruses-encoded-dutpase-implications-in-disease-pathophysiology
#4
Peter Halpin, Marshall Vance Williams, Nancy G Klimas, Mary Ann Fletcher, Zachary Barnes, Maria Eugenia Ariza
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) and Gulf War Illness (GWI) are debilitating diseases with overlapping symptomology and there are currently no validated tests for definitive diagnosis of either syndrome. While there is evidence supporting the premise that some herpesviruses may act as possible triggers of ME/CFS, the involvement of herpesviruses in the pathophysiology of GWI has not been studied in spite of a higher prevalence of ME/CFS in these patients. We have previously demonstrated that the deoxyuridine triphosphate nucleotidohydrolases (dUTPase) encoded by Epstein-Barr virus (EBV), human herpesvirus-6 (HHV-6), and varicella-zoster virus (VZV) possess novel functions in innate and adaptive immunity...
March 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28303593/sb-9200-a-novel-agonist-of-innate-immunity-shows-potent-antiviral-activity-against-resistant-hcv-variants
#5
Meleri Jones, Morven E Cunningham, Peter Wing, Sampath DeSilva, Rupa Challa, Anjaneyulu Sheri, Seetharamaiyer Padmanabhan, Radhakrishnan P Iyer, Brent E Korba, Nezam Afdhal, Graham R Foster
SB 9200 is a novel, first-in-class oral modulator of innate immunity that is believed to act via the activation of the RIG-I and NOD2 pathways. SB 9200 has broad-spectrum antiviral activity against RNA viruses including hepatitis C virus (HCV), norovirus, respiratory syncytial virus and influenza and has demonstrated activity against hepatitis B virus (HBV) in vitro and in vivo. In phase I clinical trials in chronically infected HCV patients, SB 9200 has been shown to reduce HCV RNA by up to 1.9 log10 . Here, we demonstrate the antiviral activity of SB 9200 against a HCV replicon system and patient derived virus...
March 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28303592/trend-of-measles-mumps-and-rubella-incidence-following-the-measles-rubella-catch-up-vaccination-in-the-republic-of-korea-2001
#6
Young June Choe, Hye-Eun Eom, Sung-Il Cho
Following the introduction of measles-rubella (MR) catch-up vaccination in 2001 and two dose measles-mumps-rubella (MMR2) keep-up program in 2002, the incidence of measles, mumps and rubella was not evaluated systematically. To describe the recent changes in epidemiology, a population based incidence study from 2001 to 2015 using national notifiable disease surveillance data was conducted. Between 2001 and 2015, there was decrease in the incidence of measles and rubella, whereas a steady increase in mump incidence was noted...
March 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28295404/localization-of-vzv-in-saliva-of-zoster-patients
#7
Satish K Mehta, Mayra Nelman-Gonzalez, Stephen K Tyring, Yun Tong, Andrew Beitman, Brian E Crucian, Ashlie N Renner, Duane L Pierson
Varicella zoster virus (VZV) in saliva from 6 herpes zoster patients and 1 chickenpox patient was found to be exclusively associated with epithelial cells by confocal microscopy. VZV localization with antibody specific to the VZV glycoprotein E was detected primarily on the membrane but was also inside the cell. Epithelial cells with VZV were still present in saliva in 1 out of two tested zoster patients after 10 months of recovery. Saliva from healthy controls (non-shingles patients, n = 5) did not show any sign of VZV by polymerase chain reaction or by confocal microscopy...
March 11, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28295400/paper-based-point-of-care-testing-for-cost-effective-diagnosis-of-acute-flavivirus-infections
#8
F Bedin, L Boulet, E Voilin, G Theillet, A Rubens, C Rozand
Flavivirus infections are a serious healthcare concern in tropical and subtropical countries. Although well-established laboratory tests can provide early diagnosis of acute dengue or Zika infections, access to these tests is limited in developing countries, presenting an urgent need to develop simple, rapid, and robust diagnostic tools. Microfluidic Paper-based Analytical Devices (µPAD), are typically rapid, cost-effective, user-friendly, and they can be used as diagnostic tools for the diagnosis of these infections at Point of Care settings...
March 11, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28294358/prevalence-of-human-papillomavirus-infection-among-chilean-women-from-2012-to-2016
#9
Nicolás Vergara, Gloria Espinoza, Monserrat Balanda, Andrea Quiero, Wilma Hidalgo, Héctor San Martín, Alejandro Ramírez, Eugenio Ramírez
Here we evaluated the prevalence of Human Papillomavirus (HPV) in two groups of Chilean women. The first group consisted of 3,235 women aged 18-64 years attended in six primary care centres of Santiago. The second group consisted of 456 women 18-85 aged who consulted the Gynaecology Department of the Reference Hospital of Santiago. Samples were collected from October 2012 to February 2016. Cervical swabs were analyzed both HPV genotyping by PCR and Reverse Line Blot, and cervical cytology by Pap testing. Results showed a prevalence of 12...
March 11, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28252206/analysis-of-htlv-1-proviral-load-pvl-and-antibody-detected-with-various-kinds-of-tests-in-japanese-blood-donors-to-understand-the-relationship-between-pvl-and-antibody-level-and-to-gain-insights-towards-better-antibody-testing
#10
Chieko Matsumoto, Yasuko Sagara, Rieko Sobata, Yukiko Inoue, Maiko Morita, Shigeharu Uchida, Hiroyuki Kiyokawa, Masahiro Satake, Kenji Tadokoro
Adult T-cell leukemia/lymphoma (ATL) occurs in approximately 5% of individuals infected with human T-cell leukemia virus type 1 (HTLV-1). A high proviral load (PVL; more than 4 copies per 100 peripheral blood mononuclear cells (PBMCs) or 1.6 copies per 100 blood leukocytes) and being male are risk factors for ATL development. Whether anti-HTLV-1 antibody level is related to such risk is unknown. Here, PVL and antibody levels were examined using real-time PCR and other tests in 600 HTLV-1 positive screened Japanese blood donors to understand the relationship between PVL and antibody level in asymptomatic carriers and to gain insights towards better antibody testing for HTLV-1 infection...
March 2, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28252204/emerging-arboviral-human-diseases-in-southern-europe
#11
REVIEW
Anna Papa
Southern Europe is characterized by unique landscape and climate which attract tourists, but also arthropod vectors, some of them carrying pathogens. Among several arboviral diseases that emerged in the region during the last decade, West Nile fever accounted for high number of human cases and fatalities, while Crimean-Congo hemorrhagic fever expanded its geographic distribution, and is considered as a real threat for Europe. Viruses evolve rapidly and acquire mutations making themselves stronger and naive populations more vulnerable...
March 2, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28252177/seroprevalence-of-kaposi-s-sarcoma-associated-herpesvirus-among-hiv-infected-uygurs-in-xinjiang-china
#12
Zhenqiu Liu, Qiwen Fang, Sujuan Zhou, Veenu Minhas, Charles Wood, Na He, Tiejun Zhang
Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiological agent of Kaposi's sarcoma (KS), which primarily affects human immunodeficiency virus (HIV)-infected adults with advanced immunodeficiency. Xinjiang province in China is an endemic area for Kaposi's sarcoma (KS), however, currently, only limited prevalence data for KSHV infection in HIV-infected individuals living in this endemic area is available. A cross-sectional study of 86 HIV positive participants was conducted in Xinjiang, China from 2014 through 2015...
March 2, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28240370/the-clinical-and-phylogenetic-investigation-for-a-nosocomial-outbreak-of-respiratory-syncytial-virus-infection-in-an-adult-hemato-oncology-unit
#13
Daijiro Nabeya, Takeshi Kinjo, Gretchen Lynn Parrott, Ayako Uehara, Daisuke Motooka, Shota Nakamura, Saifun Nahar, Sawako Nakachi, Masashi Nakamatsu, Sakuko Maeshiro, Shusaku Haranaga, Masao Tateyama, Takeaki Tomoyose, Hiroaki Masuzaki, Toshihiro Horii, Jiro Fujita
Although many reports have already shown RSV outbreaks among hemato-oncology patients, genomic studies detecting similar RSV strains prior to an outbreak in the hospital are rare. In 2014, the University of the Ryukyus hospital hemato-oncology unit experienced, and successfully managed, a respiratory syncytial virus (RSV) nosocomial outbreak. During the outbreak investigation, genotyping and phylogenetic analysis was used to identify a potential source for the outbreak. Nasopharyngeal swabs were tested for RSV using three tests: (1) rapid antigen test (RAT); (2) reverse transcriptase polymerase chain reaction (PCR); or (3) quantitative PCR (RT-qPCR); a positive PCR reaction was considered a confirmed case of RSV...
February 27, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28240367/first-description-of-htlv-1-2-seroprevalence-in-hiv-infected-inmates-in-mozambique
#14
Ângelo Augusto, Orvalho Augusto, Atija Taquimo, Carina Nhachigule, Narcisa Siyawadya, Nelson Tembe, Nilesh Bhatt, Francisco Mbofana, Eduardo Samo Gudo
No study has yet been conducted to estimate the burden of co-infection of HIV and HTLV-1/2 in inmates in sub-Saharan Africa. To investigate prevalence of co-infection in inmates in Mozambique, a total of 2140 inmates were screened for HIV, of which 515 were HIV seropositive. All HIV seropositive inmates were further screened for HTLV infection, and 8 (1.55%) were co-infected. Co-infection was higher in females [3.45% (2/58; CI: 0.42-11.91)] as compared to males [1.35% (6/445; CI: 0.55-3.06)]. Early screening of HTLV in prisons is urgently needed in Mozambique in order to improve the care provided to incarcerated individuals, including initiation of ART...
February 27, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28240365/full-genome-analysis-of-rotavirus-g9p-8-strains-identified-in-acute-gastroenteritis-cases-reveals-genetic-diversity-pune-western-india
#15
Vaishali S Tatte, Deepa Chaphekar, Varanasi Gopalkrishna
Group A rotaviruses (RVA) are the major enteric etiological agents of severe acute gastroenteritis among children globally. As G9 RVA now represents as one of the major human RVA genotypes, studies on full genome of this particular genotype are being carried out worldwide. So far, no such studies on G9P[8] RVAs have been reported from Pune, western part of India. Keeping in view of this, the study was undertaken to understand the degree of genetic diversity of the commonly circulating G9P[8] RVA strains. Rotavirus surveillance studies carried out earlier during the years 2009-2011 showed increase in the prevalence of G9P[8] RVAs...
February 27, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28229481/cross-reactivity-of-commercial-anti-dengue-immunoassays-in-patients-with-acute-zika-virus-infection
#16
Alvina Clara Felix, Nathalia C Santiago Souza, Walter M Figueiredo, Angela A Costa, Marta Inenami, Rosangela M G da Silva, José Eduardo Levi, Claudio Sergio Pannuti, Camila Malta Romano
Several countries have local transmission of multiple arboviruses, in particular, dengue and Zika viruses, which have recently spread through many American countries. Cross reactivity among Flaviviruses is high and present a challenge for accurate identification of the infecting agent. Thus, we evaluated the level of cross reactivity of anti-dengue IgM/G Enzyme-Linked Immunosorbent Assays (ELISA) from three manufacturers against 122 serum samples obtained at two time-points from 61 patients with non-dengue confirmed Zika virus infection...
February 23, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28229467/characterization-of-genome-sequences-and-clinical-features-of-coxsackievirus-a6-strains-collected-in-hyogo-japan-in-1999-2013
#17
Miki Ogi, Yoshihiko Yano, Masatsugu Chikahira, Denshi Takai, Tomohiro Oshibe, Takeshi Arashiro, Nozomu Hanaoka, Tsuguto Fujimoto, Yoshitake Hayashi
Coxsackievirus A6 (CV-A6) is an enterovirus, which is known to cause herpangina. However, since 2009 it has frequently been isolated from children with hand, foot and mouth disease (HFMD). In Japan, CV-A6 has been linked to HFMD outbreaks in 2011 and 2013. In this study, the full-length genome sequencing of CV-A6 strains were analyzed to identify the association with clinical manifestations. 5612 children with suspected enterovirus infection (0-17 years old) between 1999 and 2013 in Hyogo Prefecture, Japan, were enrolled...
February 22, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28225168/correlations-between-epstein-barr-virus-and-acute-leukemia
#18
Hongzai Guan, Hongxia Miao, Na Ma, Wei Lu, Bing Luo
Infection with Epstein-Barr virus (EBV) may be correlated to the onset of acute leukemia (AL). Studies were performed to investigate the relationship between EBV infection and immunophenotyping of acute lymphoblastic leukemia (ALL) and chromosome aberrations. Additionally, the effects of EBV on clinical prognosis were described. Fluorescence quantitative polymerase chain reaction (FQ-PCR) was used to detect EBV-DNA copy numbers from bone marrow in 110 cases of patients with ALL, 75 cases of patients with acute myeloid leukemia (AML), and 37 cases of hematologically healthy control subjects...
February 22, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28213975/lab-in-a-tube-real-time-molecular-point-of-care-diagnostics-for-influenza-a-and-b-using-the-cobas%C3%A2-liat%C3%A2-system
#19
Willem Jg Melchers, Judith Kuijpers, Joanna Sickler, Janette Rahamat-Langendoen
BACKGROUND: Rapid diagnosis of influenza A and B is important for direct treatment decisions in patient care and for the reduction of in-hospital transmissions. The new real-time PCR based molecular point-of-care (POC) assay, the cobas(®) Influenza A/B test on the cobas(®) Liat® System (cobas(®) Liat® Influenza A/B assay), generated a PCR result in less than 20 minutes, was evaluated for the detection of influenza A and B. METHOD OF THE STUDY: 121 retrospectively collected respiratory specimens, previously analyzed with a routine influenza A/B test (Diagenode) were tested using the cobas(®) Liat® Influenza A/B assay...
February 18, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28213974/molecular-characterization-and-clinical-epidemiology-of-human-respiratory-syncytial-virus-hrsv-a-and-b-in-hospitalized-children-southern-brazil
#20
F B Moreira, C S Rosario, J S Santos, V M Avanzi, M B Nogueira, L R Vidal, S M Raboni
Human respiratory syncytial virus (HRSV) is a major etiologic agent of pediatric respiratory infections. Genetic variability of its glycoprotein G enables HRSV to evade the immune response and determines its seasonal dissemination. This study reports genetic variability and clinical profiles of HRSV-infected patients from Southern Brazil. Seventy positive samples, 78% type A and 22% type B, were analyzed. Of the patients (median age, 6 months; interquartile range, 2-11 years) 16% had co-morbidities and 17% developed severe disease...
February 18, 2017: Journal of Medical Virology
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