Associate Professor of Pathology, Johns Hopkins University School of Medicine; Director, Clinical Virology and Molecular Microbiology
Pathology
Dr. Alexandra Valsamakis, MD
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Alexandra Valsamakis practices Pathology. She attended Perelman School of Medicine at the University of Pennsylvania. Dr. Alexandra Valsamakis has written publications. She has 46 publications published with PubMed. The lastest publication is: 'Recombinant measles viruses with mutations in the C, V, or F gene have altered growth phenotypes in vivo.'
Publications
- A Polymerase Chain Reaction-Based Algorithm to Detect and Prevent Transmission of Adenoviral Conjunctivitis in Hospital Employees.
- False-positive hepatitis C virus serology after placement of a ventricular assistance device.
- Variability of hepatitis E serologic assays in a pediatric liver transplant recipient: challenges to diagnosing hepatitis E virus infection in the United States.
- Evaluation of the Xpert Flu Rapid PCR assay in High-Risk Emergency Department Patients.
- Detection and Prevalence of Adenoviral Conjunctivitis among Hospital Employees Using Real-Time Polymerase Chain Reaction as an Infection Prevention Tool.
- Multicenter evaluation of a commercial cytomegalovirus quantitative standard: effects of commutability on interlaboratory concordance.
- Case Report: Congenital rubella syndrome: a rare but persistent concern in the United States.
- Clinical accuracy of a PLEX-ID flu device for simultaneous detection and identification of influenza viruses A and B.
- Detecting Respiratory Viruses in Asymptomatic Children.
- Strains of measles vaccine differ in their ability to replicate in an damage human thymus.
- Successful DNA immunization against measles: neutralizing antibody against either the hemagglutinin or fusion glycoprotein protects rhesus macaques without evidence of...
- Clinical isolates of measles virus use CD46 as a cellular receptor.
- Altered virulence of vaccine strains of measles virus after prolonged replication in human tissue.
- Molecular diagnostics for existing and emerging infections. Complementary tools for a new era of clinical microbiology.
- Production of atypical measles in rhesus macaques: evidence for disease mediated by immune complex formation and eosinophils in the presence of fusion-inhibiting antib...
- Recombinant measles viruses with mutations in the C, V, or F gene have altered growth phenotypes in vivo.
- Early studies on DNA-based immunizations for measles virus.
- Measles virus and C3 binding sites are distinct on membrane cofactor protein (CD46).
- Neuroattenuated bunyavirus variant: derivation, characterization, and revertant clones.
- The human immunodeficiency virus type 1 polyadenylylation signal: a 3' long terminal repeat element upstream of the AAUAAA necessary for efficient polyadenylylation.
- Elements upstream of the AAUAAA within the human immunodeficiency virus polyadenylation signal are required for efficient polyadenylation in vitro.
- Multilaboratory comparison of hepatitis C virus viral load assays.
- Multicenter comparison of different real-time PCR assays for quantitative detection of Epstein-Barr virus.
- Molecular testing in the diagnosis and management of chronic hepatitis B.
- Application of the Hybrid Capture 2 assay to squamous cell carcinomas of the head and neck: A convenient liquid-phase approach for the reliable determination of human ...
- Cytomegalovirus DNA quantification using an automated platform for nucleic acid extraction and real-time PCR assay setup.
- Rapid identification viruses from nasal pharyngeal aspirates in acute viral respiratory infections by RT-PCR and electrospray ionization mass spectrometry.
- Reverse transcription polymerase chain reaction and electrospray ionization mass spectrometry for identifying acute viral upper respiratory tract infections.
- The combination of ribavirin and peginterferon is superior to peginterferon and placebo for children and adolescents with chronic hepatitis C.
- Clinical outcomes of seasonal influenza and pandemic influenza A (H1N1) in pediatric inpatients.
- Severe pandemic H1N1 and seasonal influenza in children and young adults with sickle cell disease.
- Multicenter study of clinical performance of the 3M Rapid Detection RSV test.
- The critically ill child with novel H1N1 influenza A: a case series.
- A clinical algorithm identifies high risk pediatric oncology and bone marrow transplant patients likely to benefit from treatment of adenoviral infection.
- Evaluation of an automated, highly sensitive, real-time PCR-based assay (COBAS Ampliprep/COBAS TaqMan) for quantification of HCV RNA.
- Differential CMV-specific CD8+ effector T cell responses in the lung allograft predominate over the blood during human primary infection.
- Performance characteristics of a quantitative hepatitis C virus RNA assay using COBAS AmpliPrep total nucleic acid isolation and COBAS taqman hepatitis C virus analyte...
- Respiratory syncytial virus detection by Remel Xpect, Binax Now RSV, direct immunofluorescent staining, and tissue culture.
- Low prevalence of pertussis among children admitted with respiratory symptoms during respiratory syncytial virus season.
- Modulation of disease, T cell responses, and measles virus clearance in monkeys vaccinated with H-encoding alphavirus replicon particles.
- Verification of an assay for quantification of hepatitis C virus RNA by use of an analyte-specific reagent and two different extraction methods.
- Increased sensitivity of the Roche COBAS AMPLICOR HCV test, version 2.0, using modified extraction techniques.
- Multicenter evaluation of the performance characteristics of the bayer VERSANT HCV RNA 3.0 assay (bDNA).
- Comparison of automated and manual nucleic acid extraction methods for detection of enterovirus RNA.
- Hepatitis E Virus Infection Among Solid Organ Transplant Recipients at a North American Transplant Center.
Schools
Perelman School of Medicine University of Pennsylvania
Doctors Specialties
- Clinical Pathology
- Pathology
Accepted Insurances
Education
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University of California San Diego -
Perelman School of Medicine at the University of Pennsylvania
Hospital
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Johns Hopkins Hospital
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