Abstract:
:Primary infection, seroconversion, and transmitted drug resistance (TDR) during pregnancy may influence the risk of mother-to-child-transmission (MTCT) of HIV-1 infection. This study estimated recent seroconversion, TDR rates, HIV-1 subtypes and pregnancy outcomes among 95 recently diagnosed, antiretroviral (ARV)-naïve pregnant women recruited during antenatal care in central western Brazil. Recent seroconversion was defined by BED-capture enzyme immunoassay (<155 days) and ambiguous nucleotides base calls (<1 year) in pol sequences (protease-PR and reverse transcriptase-RT regions). TDR was evaluated by the Calibrated Population Resistance tool. HIV-1 subtypes were defined by REGA and phylogenetic analyses. The median age of participants was 25 years; the median gestational age at diagnosis was 20.5 weeks. Based on serology and sequence polymorphism, recent infection was identified in 11.6% (11/95) and, 9 of them (82%), probably seroconverted during pregnancy; one MTCT case was observed among them. Three cases of stillbirth were observed among chronic infected patients (3.6%; 3/84). Moderate rate of TDR was observed (9/90, 10%, CI95% 4.7-18.1%). Subtype B was 60% (54/90), 13.3% (12/90) was subtype C, 6.7% (6/90) was subtype F1. Recombinant B(PR) /F1(RT) and F1(PR) /B(RT) viruses comprised 15.5% (14/90); B(PR) /C(RT) mosaics represented 4.4% (4/90). Seroconversion during pregnancy, late presentation to antenatal care and moderate TDR identified in this study represent significant challenges for the MTCT elimination. J. Med. Virol. 88:1936-1943, 2016. © 2016 Wiley Periodicals, Inc.
journal_name
J Med Viroljournal_title
Journal of medical virologyauthors
Lima YA,Cardoso LP,Reis MN,Stefani MMdoi
10.1002/jmv.24540subject
Has Abstractpub_date
2016-11-01 00:00:00pages
1936-43issue
11eissn
0146-6615issn
1096-9071journal_volume
88pub_type
杂志文章abstract::An outbreak of an acute sporadic viral hepatitis occurring at three villages in the lower Shebli region of southern Somalia was studied. Sera were examined for antibodies to hepatitis E virus (HEV) antigen by a recently developed enzyme-linked immunosorbent assay. The prevalence of anti-HEV ranged from 77.8% to 94.0% ...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.1890400309
更新日期:1993-07-01 00:00:00
abstract::A molecular epidemiological study on common diarrheal viruses was conducted in a children's hospital in Ho Chi Minh City between December 2005 and November 2006. Fecal samples were collected from 502 pediatric patients with acute gastroenteritis, and were screened for eight types of viral agents. Human astroviruses (H...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.21032
更新日期:2008-02-01 00:00:00
abstract::The aim of this study was to compare the data obtained using the new LIAISON® XL chemiluminescence system to search for HBsAg, anti-HCV, and anti-HIV1-2/p24 Ag with those obtained using the VITROS system currently adopted by the Microbiology Unit of the Hospital of Legnano. Routine samples of patients who were referre...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.24648
更新日期:2017-03-01 00:00:00
abstract::In real-world settings, not much information is probably available on the treatment efficacy of the combination of glecaprevir and pibrentasvir (G/P) as a salvage therapy in failures of prior direct-acting antiviral (DAA) regimens. Especially, the evolution of NS5A resistance-associated variants (RAVs) and treatment e...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.25278
更新日期:2019-01-01 00:00:00
abstract::Five HIV-1 isolates were obtained sequentially from a single seropositive individual during the later stages of AIDS. Four of these isolates were adapted to grow in a continuous human T-lymphocytic cell line. Comparative biological and biochemical studies of the virus isolates were made using persistently infected cul...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.1890340207
更新日期:1991-06-01 00:00:00
abstract::In order to evaluate the true immune status and the effect of revaccination on a young adult population, we collected serum samples from 289 military recruits who were vaccinated during an outbreak in 1991. Most vaccinees, age 18-25 years, had apparently been immunized once before as infants. Sera collected just prior...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-9071(199611)50:3<249::AID-JMV7>
更新日期:1996-11-01 00:00:00
abstract::Latency associated peptide (LAP) is a protein expressed on the membrane of some regulatory T cells (Treg). LAP+ Treg have a greater immunomodulatory effect than that of their negative counterparts. In this study, we presented the data on the proportion of LAP+ Treg out of CD4+ cells in mice with viral myocarditis, whi...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.25378
更新日期:2019-05-01 00:00:00
abstract::Respiratory viruses were identified by the polymerase chain reaction (PCR) in more than 4,200 specimens collected during 2002 and 2003 in Victoria, Australia from patients admitted to hospitals or participating in an influenza surveillance program. Influenza viruses and picornaviruses were important causes of morbidit...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.20246
更新日期:2005-01-01 00:00:00
abstract::Adhesion molecules are essential for the immune response. They are involved in the regulation of cell-to-cell contact, thereby enabling leukocytes to communicate. Circulating forms of adhesion molecules are found in the serum of healthy individuals. Raised levels have been associated with disease severity in HCV and o...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
abstract::The λ-carrageenan (λ-car) is a potent and selective inhibitor of dengue virus (DENV) infection targeted to virus adsorption and internalization, due to the structural similarities with the mammalian cell receptor heparan sulfate. To further characterize the antiviral activity of λ-car, the selection and the phenotypic...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.24457
更新日期:2016-07-01 00:00:00
abstract::Sex differences in the predictors for hepatocellular carcinoma (HCC) development after direct-acting antiviral (DAA) therapy was investigated. DAA therapy was given to 1438 (663 male, 775 female) patients. Sex differences in the HCC development rate and the factors contributing to HCC development after DAA therapy wer...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.25984
更新日期:2020-05-06 00:00:00
abstract::In October 1977 an outbreak of acute infectious diarrhea occurred in an infant home in the city of Sapporo, Japan. Of 34 residents aged two to 20 months, 26 (77%) suffered from diarrhea. In ten of these patients the diarrhea was accompanied by vomiting. Electron microscopic examinations revealed typical calicivirus pa...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.1890040402
更新日期:1979-01-01 00:00:00
abstract::Hantaviruses is an emerging infectious disease. Although HCPS has been reported in several regions of Brazil, more cases of HCPS have recently been reported in Minas Gerais than in any other state. In 2009, we analyzed 27 samples presenting antibodies against hantaviruses. These samples originated from 688 symptomatic...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.24118
更新日期:2015-05-01 00:00:00
abstract::The discovery of autochthonous hepatitis E in industrialized countries associated to genotype 3 has changed substantially the understanding about hepatitis E virus (HEV) circulation. In these countries transmission has been associated to the consumption and direct contact to swine, a well-known reservoir for HEV. More...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.23927
更新日期:2014-06-01 00:00:00
abstract::The presence of the E2 region of HPV 16 was determined by the polymerase chain reaction in biopsy samples with different histopathological diagnoses. The absence of the E2 gene was observed in 17 of 30 cases examined. The E2 deletions were not confined exclusively to invasive carcinomas or to integrated viral forms. I...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.1890410102
更新日期:1993-09-01 00:00:00
abstract::The human respiratory syncytial virus (HRSV) is the most important cause of admission to hospital for acute lower respiratory tract infections in infants and young children worldwide. Only few studies have investigated the molecular evolution of HRSV, and none has been conduct ed in Italy. The genetic diversity of the...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.21012
更新日期:2007-12-01 00:00:00
abstract::To assess whether the administration of a booster dose of influenza vaccine may enhance immune response in hemodialysis patients, 58 subjects were given two doses of the 2003/2004 season influenza vaccine, 1 month apart. "European Agency for the Evaluation of Medicinal Products" (EMEA) criteria were fully met in terms...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.20936
更新日期:2007-08-01 00:00:00
abstract::BKPyV replication is a risk factor for the development of polyomavirus-associated nephropathy in kidney transplant recipients. Here, the case of a 42 years old Caucasian patient is described who developed a kidney allograft failure because of uncontrolled BKPyV replication 7 months after transplant despite a strong re...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.25458
更新日期:2019-09-01 00:00:00
abstract::Parainfluenza virus type 3 (Para 3) is an important childhood pathogen causing a significant amount of bronchiolitis and pneumonia in infants. Virus data were analysed over a twelve-year period (1978-1989), and a peak incidence of infection was observed in spring as in Houston, USA, unlike in the United Kingdom where ...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.1890350105
更新日期:1991-09-01 00:00:00
abstract::The general aim was to investigate the burden of respiratory virus illness in a hospital emergency department, during two different epidemic seasons. Consecutive patients attending an emergency department during two study periods (February/March 2009 and 2010) were enrolled using broad inclusion criteria (fever/preced...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.22205
更新日期:2011-11-01 00:00:00
abstract::Polyomavirus BK (BKV) is a common human polyomavirus that rarely causes clinical symptoms in immunocompetent individuals. However, BK virus reactivation occurs in 20-40% of kidney transplant patients and 1-10% of cases present with BK virus-associated nephropathy (BKVN) and reduced kidney allograft survival. In this s...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.22106
更新日期:2011-08-01 00:00:00
abstract::Fifty-three (96%) of 55 patients with coronary artery stenosis were positive for serum anti-HHV-6 IgG, and 50 (91%) of these patients had anti-HHV-7 IgG. The number of cases sero-positive for HHV-6 and -7 in the 54 age matched control volunteers was 52 (96%) and 53 (98%), respectively. No statistical difference in the...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.10134
更新日期:2002-08-01 00:00:00
abstract::The human foamy virus is a complex retrovirus that codes for several regulatory bel genes in addition to the conventional gag, pol, and env genes. The bel 3 gene is located in the 3' part of the viral genome comparable to that of the superantigen of the mouse mammary tumor virus. Superantigens bound to major histocomp...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.1890440112
更新日期:1994-09-01 00:00:00
abstract::The effect of antiviral treatment on apoptosis in chronic hepatitis B (CHB) has not been clarified. We evaluated the hepatic immunohistochemical expression of the pro-apoptotic bax and the antiapoptotic bcl-xL protein in HBeAg-negative CHB patients before and after treatment. In our study we included 72 paired biopsie...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.21780
更新日期:2011-07-01 00:00:00
abstract::Self-limited involvement of the central nervous system (CNS) is a relatively common complication of primary infection with human herpesvirus six (HHV-6) in normal children. We describe an HIV-infected infant who developed fulminant encephalitis as a complication of HHV-6 infection. Immunohistochemical staining of CNS ...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.1890450309
更新日期:1995-03-01 00:00:00
abstract::A modified centrifugation culture technique and a polymerase chain reaction (PCR) is described for detection of early antigen and IE antigen DNA, respectively, for rapid and sensitive monitoring of active cytomegalovirus (HCMV) infection after organ transplantation. In a preliminary study, 541 clinical specimens (bloo...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.1890380404
更新日期:1992-12-01 00:00:00
abstract::This study aimed to investigate the characteristics of female high-risk human papillomavirus (HR-HPV) infection in Shaanxi province of China. A total of 14 111 women were enrolled for HPV genotyping test, and a cytology, and/or cervix biopsy were performed in partial women. Of these women, the HPV infection rate was 3...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.24748
更新日期:2017-07-01 00:00:00
abstract::Poliovirus (PV) is a member of the species Enterovirus C (EV-C), which may cause irreversible paralysis and death. So, for the purpose of analyzing the evolution of PV2 to help in eradicating PVs globally, a recombination analysis was performed to verify all viral genomes of EV-C, and we found 13 putative recombinatio...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.25620
更新日期:2020-03-01 00:00:00
abstract::Exposure to Ljungan virus (LV) is implicated in the risk of autoimmune (type 1) diabetes but possible contribution by other parechoviruses is not ruled out. The aim was to compare children diagnosed with type 1 diabetes in 2005-2011 (n = 69) with healthy controls (n = 294), all from the Jämtland County in Sweden, usin...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.24127
更新日期:2015-07-01 00:00:00
abstract::In order to assess the current seroepidemiology of hepatitis D virus (HDV) infection in Taiwan where hepatitis B virus (HBV) is hyperendemic, a total of 756 voluntary blood donors, 641 prostitutes, 1,014 patients with sexually transmitted diseases (STDs), and 628 drug abusers were studied. Radioimmunoassays were used ...
journal_title:Journal of medical virology
pub_type: 杂志文章
doi:10.1002/jmv.1890380205
更新日期:1992-10-01 00:00:00