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C. Nielsen · SciRah

Researcher profile · Semantic Scholar

C. Nielsen

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C. Nielsen — researcher profile on SciRah

h-index: 29
Works: 74
Citations: 3,086

Most-cited papers

Prevalence of drug-resistant HIV-1 variants in untreated individuals in Europe: implications for clinical management.
A. Wensing, D. A. van de Vijver, G. Angarano, B. Åsjö +42 more
2005Journal of Infectious Diseases456 citations Open access
Semantic Scholar
Transmission of drug-resistant HIV-1 is stabilizing in Europe.
J. Vercauteren, A. Wensing, D. A. van de Vijver, J. Albert +27 more
2009Journal of Infectious Diseases267 citations Open access
Semantic Scholar
Updated European Recommendations for the Clinical Use of HIV Drug Resistance Testing
A. Vandamme, A. Sönnerborg, M. Ait-Khaled, J. Albert +43 more
2004Antiviral Therapy186 citations Open access
Semantic Scholar
Transmission of HIV Drug Resistance and the Predicted Effect on Current First-line Regimens in Europe
L. Hofstra, N. Sauvageot, Jan Albert, I. Alexiev +31 more
2015Clinical Infectious Diseases161 citations Open access
Semantic Scholar
HIV-1 subtype distribution and its demographic determinants in newly diagnosed patients in Europe suggest highly compartmentalized epidemics
A. Abecasis, A. Wensing, D. Paraskevis, J. Vercauteren +31 more
2013Retrovirology152 citations Open access
Semantic Scholar
Tracing the HIV-1 subtype B mobility in Europe: a phylogeographic approach
D. Paraskevis, O. Pybus, G. Magiorkinis, A. Hatzakis +44 more
2009Retrovirology145 citations Open access
Semantic Scholar
The impact of transmitted drug resistance on the natural history of HIV infection and response to first-line therapy
D. Pillay, K. Bhaskaran, S. Jurriaans, M. Prins +13 more
2006AIDS (London)120 citations Open access
Semantic Scholar
The Calculated Genetic Barrier for Antiretroviral Drug Resistance Substitutions Is Largely Similar for Different HIV-1 Subtypes
D. A. van de Vijver, A. Wensing, G. Angarano, B. Åsjö +42 more
2006Journal of Acquired Immune Deficiency Syndromes117 citations Open access
Semantic Scholar
Longitudinal serum HIV RNA quantification: correlation to viral phenotype at seroconversion and clinical outcome
T. Katzenstein, C. Pedersen, C. Nielsen, J. Lundgren +2 more
1996AIDS (London)111 citations
Semantic Scholar
Prevalence and Characteristics of Multinucleoside-Resistant Human Immunodeficiency Virus Type 1 among European Patients Receiving Combinations of Nucleoside Analogues
K. van Vaerenbergh, K. Van Laethem, J. Albert, C. Boucher +24 more
2000Antimicrobial Agents and Chemotherapy104 citations Open access
Semantic Scholar
Biological properties of HIV isolates in primary HIV infection: consequences for the subsequent course of infection
C. Nielsen, C. Pedersen, J. Lundgren, J. Gerstoft
1993AIDS (London)87 citations
Semantic Scholar
Global Dispersal Pattern of HIV Type 1 Subtype CRF01_AE: A Genetic Trace of Human Mobility Related to Heterosexual Sexual Activities Centralized in Southeast Asia.
K. Angelis, J. Albert, I. Mamais, G. Magiorkinis +30 more
2015Journal of Infectious Diseases77 citations Open access
Semantic Scholar
Primary resistance to integrase strand-transfer inhibitors in Europe.
M. Casadellà, P. V. van Ham, M. Noguera-Julian, A. Van Kessel +25 more
2015Journal of Antimicrobial Chemotherapy70 citations Open access
Semantic Scholar
The global spread of HIV-1 subtype B epidemic
G. Magiorkinis, K. Angelis, I. Mamais, A. Katzourakis +45 more
2016Infection, Genetics and Evolution61 citations Open access
Semantic Scholar
HIV-1 transmission between MSM and heterosexuals, and increasing proportions of circulating recombinant forms in the Nordic Countries
J. Esbjörnsson, M. Mild, A. Audelin, J. Fonager +10 more
2016Virus Evolution59 citations Open access
Semantic Scholar
Increase in transmitted resistance to non-nucleoside reverse transcriptase inhibitors among newly diagnosed HIV-1 infections in Europe
D. Frentz, D. A. van de Vijver, A. Abecasis, J. Albert +32 more
2014BMC Infectious Diseases53 citations Open access
Semantic Scholar
Nosocomial HIV-transmission in an outpatient clinic detected by epidemiological and phylogenetic analyses.
T. Katzenstein, L. Jørgensen, H. Permin, Jan Hansen +3 more
1999AIDS (London)51 citations Open access
Semantic Scholar
Limited cross-border infections in patients newly diagnosed with HIV in Europe
D. Frentz, A. Wensing, J. Albert, D. Paraskevis +33 more
2013Retrovirology46 citations Open access
Semantic Scholar
Patterns of Transmitted HIV Drug Resistance in Europe Vary by Risk Group
D. Frentz, D. A. van de Vijver, A. Abecasis, J. Albert +31 more
2014PLoS ONE45 citations Open access
Semantic Scholar
Rapid development of AIDS in an HIV-1-antibody-negative homosexual man.
P. Martín-Rico, C. Pedersen, P. Skinhøj, C. Nielsen +1 more
1995AIDS (London)42 citations
Semantic Scholar
Trends and Predictors of Transmitted Drug Resistance (TDR) and Clusters with TDR in a Local Belgian HIV-1 Epidemic
A. Pineda-Peña, Y. Schrooten, L. Vinken, F. Ferreira +21 more
2014PLoS ONE36 citations Open access
Semantic Scholar
Prevalence of Drug Resistance Mutations and Non-B Subtypes in Newly Diagnosed HIV-1 Patients in Denmark
L. Jørgensen, M. B. Christensen, J. Gerstoft, L. Mathiesen +4 more
2003Scandinavian Journal of Infectious Diseases35 citations
Semantic Scholar
Failure To Develop HIV Infection after Receipt of HIV-Contaminated Blood and Postexposure Prophylaxis
T. Katzenstein, E. Dickmeiss, H. Aladdin, A. Hede +4 more
2000Annals of Internal Medicine35 citations
Semantic Scholar
Molecular Investigation of Transmission of Human Immunodeficiency Virus Type 1 in a Criminal Case
Roberto Machuca, L. Jørgensen, P. Theilade, C. Nielsen
2001Clinical Diagnostic Laboratory Immunology34 citations Open access
Semantic Scholar
Phylogenetics of the Danish HIV Epidemic: The Role of Very Late Presenters in Sustaining the Epidemic
A. Audelin, S. Cowan, N. Obel, C. Nielsen +2 more
2013Journal of Acquired Immune Deficiency Syndromes33 citations Open access
Semantic Scholar
Immunogenicity in Mamu-A*01 rhesus macaques of a CCR5-tropic human immunodeficiency virus type 1 envelope from the primary isolate (Bx08) after synthetic DNA prime and recombinant adenovirus 5 boost.
L. Vinner, E. Wee, Sandip Patel, S. Corbet +6 more
2003Journal of General Virology33 citations Open access
Semantic Scholar
Association between SARS-CoV-2 Transmission Risk, Viral Load, and Age: A Nationwide Study in Danish Households
F. P. Lyngse, K. Mølbak, K. Franck, C. Nielsen +4 more
2021medRxiv31 citations Open access
Semantic Scholar
The danish protease inhibitor study: a randomized study comparing the virological efficacy of 3 protease inhibitor-containing regimens for the treatment of human immunodeficiency virus type 1 infection.
T. Katzenstein, O. Kirk, Court Pedersen, J. Lundgren +5 more
2000Journal of Infectious Diseases31 citations
Semantic Scholar
Molecular Phylogenetics of Transmitted Drug Resistance in Newly Diagnosed HIV Type 1 Individuals in Denmark, a Nation-Wide Study
A. Audelin, J. Gerstoft, N. Obel, L. Mathiesen +7 more
2011AIDS Research and Human Retroviruses30 citations
Semantic Scholar
Subtype-specific problems with qualitative Amplicor HIV-1 DNA PCR test.
Marianne Bøgh, Roberto Machuca, Jan Gerstoft, Court Pedersen +4 more
2001Journal of Clinical Virology25 citations
Semantic Scholar
Treatment-associated polymorphisms in protease are significantly associated with higher viral load and lower CD4 count in newly diagnosed drug-naive HIV-1 infected patients
K. Theys, K. Deforche, J. Vercauteren, Pieter J. K. Libin +31 more
2012Retrovirology24 citations Open access
Semantic Scholar
Analysis from more than 1600 newly diagnosed patients with HIV from 17 European countries shows that 10% of the patients carry primary drug-resistance: the CATCH study
A. Wensing, D. van de Vijver, B. Åsjö, C. Balotta +31 more
200324 citations
Semantic Scholar
Development of resistance to zidovudine (ZDV) and didanosine (ddl) in HIV from patients in ZDV, ddl and alternating ZDV/ddl therapy
C. Nielsen, L. Bruun, L. Mathiesen, C. Pedersen +1 more
1996AIDS (London)23 citations
Semantic Scholar
Prevalence of transmitted drug resistance in Europe is largely influenced by the presence of non-B sequences: analysis of 1400 patients from 16 countries: the CATCH-Study
A. Wensing, D. van de Vijver, B. Åsjö, C. Balotta +28 more
200322 citations
Semantic Scholar
Cell-associated HIV DNA Measured Early During Infection has Prognostic Value Independent of Serum HIV RNA Measured Concomitantly
T. Katzenstein, R. Oliveri, T. Benfield, J. Eugen-Olsen +2 more
2002Scandinavian Journal of Infectious Diseases18 citations
Semantic Scholar
Receptor Function of CD4 Structures from African Green Monkey and Pig-Tail Macaque for Simian Immunodeficiency Virus, SIVsm, SIVagm, and Human Immunodeficiency Virus Type-1
A. Fomsgaard, Philip R. Johnson, C. Nielsen, F. Novembre +3 more
1995Viral immunology17 citations
Semantic Scholar
Identification of minority resistance mutations in the HIV-1 integrase coding region using next generation sequencing.
J. Fonager, J. Larsson, Christian Hussing, Frederik Neess Engsig +2 more
2015Journal of Clinical Virology16 citations
Semantic Scholar
HIV-1 drug-resistance patterns among patients on failing treatment in a large number of European countries.
D. van de Vijver, A. Wensing, B. Åsjö, M. Brůčková +22 more
2010Acta Dermatovenerologica Alpina Pannonica et Adriatica16 citations
Semantic Scholar
HIV-1 subtypes in Denmark.
Roberto Machuca, Marianne Bøgh, M. Salminen, Jan Gerstoft +5 more
2001Scandinavian Journal of Infectious Diseases16 citations
Semantic Scholar
Short Communication: High Prevalence of Drug-Resistant Human Immunodeficiency Virus Type 1 in Treatment-Naïve Patients in Greenland
T. Madsen, N. Lohse, EA Jensen, N. Obel +5 more
2008AIDS Research and Human Retroviruses15 citations
Semantic Scholar
Nosocomial child-to-child transmission of HIV.
Henrik Nielsen, Steen RosthoSj, Roberto Machuca, C. Nielsen +1 more
1998The Lancet15 citations
Semantic Scholar
Introduction of HIV Type 1 into an Isolated Population: Molecular Epidemiologic Study from Greenland
T. Madsen, T. Leitner, N. Lohse, N. Obel +5 more
2007AIDS Research and Human Retroviruses14 citations
Semantic Scholar
The origin and emergence of an HIV-1 epidemic: from introduction to endemicity
Christian A. W. Bruhn, A. Audelin, M. Helleberg, Karen Bjørn-Mortensen +7 more
2014AIDS (London)13 citations Open access
Semantic Scholar
Cellular HIV-1 DNA Levels in Drug Sensitive Strains Are Equivalent to Those in Drug Resistant Strains in Newly-Diagnosed Patients in Europe
Victoria L. Demetriou, D. A. van de Vijver, Ioanna Kousiappa, C. Balotta +15 more
2010PLoS ONE13 citations Open access
Semantic Scholar
Transmission of drug-resistance in Europe is characterized by single mutations and revertants
A. M. J. Wensing, J. Vercauteren, D. A. van de Vijver, J. Albert +21 more
200612 citations
Semantic Scholar
Biological phenotype of HIV-1 and transmission.
J. Albert, J. R. Fiore, E. Fenyö, Court Pedersen +3 more
1995AIDS (London)12 citations
Semantic Scholar
Selective transmission of drug resistance mutations
D. van de Vijver, A. Wensing, B. Åsjö, M. Brůčková +17 more
200511 citations
Semantic Scholar
Prevalence of HIV infection in seronegative high-risk individuals examined by virus isolation and PCR.
C. Nielsen, L. S. Teglbjærg, Court Pedersen, J. Lundgren +2 more
1991Journal of Acquired Immune Deficiency Syndromes10 citations
Semantic Scholar
Phylogeny and resistance profiles of HIV‐1 POL sequences from rectal biopsies and blood
T. Katzenstein, A. B. Petersen, M. Storgaard, Niels Obel +3 more
2010Journal of Medical Virology8 citations
Semantic Scholar
Reappearance of an 11-year-old sequence in an HIV-1 infected patient during treatment interruption
Tina Vasehus Madsen, J. Gerstoft, C. Nielsen, Louise Bruun Jørgensen
2008Scandinavian Journal of Infectious Diseases6 citations
Semantic Scholar

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