• Article  

      Evidence of two distinct subsubtypes within the HIV-1 subtype A radiation 

      Gao, F.; Vidal, N.; Li, Y.; Trask, S. A.; Chen, Y.; Kostrikis, Leontios G.; Ho, David D.; Kim, J.; Oh, M. -D; Choe, K.; Salminen, M.; Robertson, D. L.; Shaw, G. M.; Hahn, B. H.; Peeters, M. (2001)
      Members of HIV-1 group M are responsible for the vast majority of AIDS cases worldwide and have been classified on the basis of their phylogenetic relationships into nine roughly equidistant clades, termed subtypes. Although ...
    • Article  

      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 

      Angelis, Konstantinos; Albert, Jan; Mamais, Ioannis A.; Magiorkinis, Gkikas; Hatzakis, Angelos E.; Hamouda, O.; Struck, D.; Vercauteren, J.; Wensing, A. M. J.; Alexiev, Ivailo; Åsjö, Birgitta; Balotta, Claudia; Camacho, Ricardo J.; Coughlan, S.; Griskevicius, A.; Grossman, Z.; Horban, A.; Kostrikis, Leontios G.; Lepej, S.; Liitsola, K.; Linka, M.; Nielsen, C.; Otelea, D.; Paredes, R.; Poljak, M.; Puchhammer-Stöckl, E.; Schmit, J. -C; Sönnerborg, A.; Staneková, D.; Stanojevic, M.; Boucher, C. A. B.; Kaplan, L.; Vandamme, A. -M; Paraskevis, Dimitrios N. (2015)
      Background. Human immunodeficiency virus type 1 (HIV-1) subtype CRF01-AE originated in Africa and then passed to Thailand, where it established a major epidemic. Despite the global presence of CRF01-AE, little is known ...
    • Article  

      The global spread of HIV-1 subtype B epidemic 

      Magiorkinis, Gkikas; Angelis, Konstantinos; Mamais, Ioannis A.; Katzourakis, A.; Hatzakis, Angelos E.; Albert, Jan; Lawyer, G.; Hamouda, O.; Struck, D.; Vercauteren, J.; Wensing, A.; Alexiev, Ivailo; Åsjö, Birgitta; Balotta, Claudia; Gomes, P.; Camacho, Ricardo J.; Coughlan, S.; Griskevicius, A.; Grossman, Z.; Horban, A.; Kostrikis, Leontios G.; Lepej, S. J.; Liitsola, K.; Linka, M.; Nielsen, C.; Otelea, D.; Paredes, R.; Poljak, M.; Puchhammer-Stöckl, E.; Schmit, J. C.; Sönnerborg, A.; Staneková, D.; Stanojevic, M.; Stylianou, Dora C.; Boucher, C. A. B.; Nikolopoulos, Georgios K.; Vasylyeva, T.; Friedman, S. R.; van de Vijver, D.; Angarano, G.; Chaix, M. -L; de Luca, A.; Korn, K.; Loveday, C.; Soriano, V.; Yerly, S.; Zazzi, M.; Vandamme, A. M.; Paraskevis, Dimitrios N. (2016)
      Human immunodeficiency virus type 1 (HIV-1) was discovered in the early 1980s when the virus had already established a pandemic. For at least three decades the epidemic in the Western World has been dominated by subtype B ...
    • Article  

      Hepatitis C infection among intravenous drug users attending therapy programs in Cyprus 

      Demetriou, Victoria L.; Van De Vijver, D. A. M. C.; Hezka, Johana; Kostrikis, Leontios G.; Savvopoulou, Natasa; Georgiades, Neoklis; Charilaou, Charis C.; Argyriou, Argyris; Pavlou, Tina; Platritis, Kyriakos; Veresies, Kyriakos L. (2010)
      The most high-risk population for HCV transmission worldwide today are intravenous drug users. HCV genotypes in the general population in Cyprus demonstrate a polyphyletic infection and include subtypes associated with ...
    • Article  

      Implications of HIV-1 M group polymorphisms on integrase inhibitor efficacy and resistance: Genetic and structural in silico analyses 

      Loizidou, Eriketi Z.; Kousiappa, Ioanna; Zeinalipour-Yazdi, Constantinos D.; Van De Vijver, D. A. M. C.; Kostrikis, Leontios G. (2009)
      The extensive polymorphisms among HIV-1 subtypes have been implicated in drug resistance development. Integrase inhibitors represent the latest addition to the treatment of HIV-1, and their efficacy and resistance patterns ...
    • Article  

      Implications of HIV-1 M group polymorphisms on integrase inhibitor efficacy and resistance: Genetic and structural in silico analyses 

      Loizidou, Eriketi Z.; Kousiappa, Ioanna; Zeinalipour-Yazdi, Constantinos D.; Van De Vijver, D. A. M. C.; Kostrikis, Leontios G. (2009)
      The extensive polymorphisms among HIV-1 subtypes have been implicated in drug resistance development. Integrase inhibitors represent the latest addition to the treatment of HIV-1, and their efficacy and resistance patterns ...
    • Article  

      Increase in transmitted resistance to non-nucleoside reverse transcriptase inhibitors among newly diagnosed HIV-1 infections in Europe 

      Moutschen, M.; Frentz, D.; Van de Vijver, D. A. M. C.; Abecasis, A. B.; Albert, Jan; Hamouda, O.; Jørgensen, L. B.; Ku¨cherer, C.; Struck, D.; Schmit, J. -C; Vercauteren, J.; A˚sjo¨, B.; Balotta, Claudia; Beshkov, Danail; Camacho, Ricardo J.; Clotet, B.; Coughlan, S.; Griskevicius, A.; Grossman, Z.; Horban, A.; Kolupajeva, T.; Korn, K.; Kostrikis, Leontios G.; Liitsola, K.; Linka, M.; Nielsen, C.; Otelea, D.; Paraskevis, Dimitrios N.; Paredes, R.; Poljak, M.; Puchhammer-Sto¨ckl, E.; So¨nnerborg, A.; Stanekova, D.; Stanojevic, M.; Van Wijngaerden, E.; Wensing, A. M. J.; Boucher, C. A. B.; Puchhammer-Stockl, E.; Sarcletti, M.; Schmied, B.; Geit, M.; Balluch, G.; Vandamme, A. -M; Vercauteren, J.; Derdelinckx, I.; Sasse, A.; Bogaert, M.; Ceunen, H.; De Roo, A.; De Wit, S.; Echahidi, F.; Fransen, K.; Goffard, J. -C; Goubau, P.; Goudeseune, E.; Yombi, J. -C; Lacor, P.; Liesnard, C.; Pierard, D.; Rens, R.; Schrooten, Y.; Vaira, D.; Vandekerckhove, L. P. R.; Van den Heuvel, A.; Van Der Gucht, B.; Van Ranst, M.; Van Wijngaerden, E.; Vandercam, B.; Vekemans, M.; Verhofstede, C.; Clumeck, N.; Van Laethem, K.; Demetriades, Ioannis; Kousiappa, Ioanna; Demetriou, Victoria L.; Hezka, Johana; Bruckova, M.; Linka, M.; Machala, L.; Nielsen, C.; Jørgensen, L. B.; Gerstoft, J.; Mathiesen, L.; Pedersen, C.; Nielsen, H.; Laursen, A.; Kvinesdal, B.; Salminen, M.; Ristola, M.; Liitsola, K.; Suni, J.; Sutinen, J.; Korn, K.; Ku¨cherer, C.; Berg, T.; Braun, P.; Poggensee, G.; Da¨umer, M.; Eberle, J.; Heiken, H.; Kaiser, R.; Knechten, H.; Mu¨ller, H.; Neifer, S.; Schmidt, B.; Walter, H.; Gunsenheimer-Bartmeyer, B.; Harrer, T.; Paraskevis, Dimitrios N.; Hatzakis, Angelos E.; Magiorkinis, Emmanouil N.; Hatzitheodorou, Eleni; Haida, Catherine; Zavitsanou, Assimina; Magiorkinis, Gkikas; Lazanas, Marios C.; Chini, Maria C.; Magafas, N.; Tsogas, Nickolaos; Paparizos, Vassilios A.; Kourkounti, Sofia; Antoniadou, Anastasia C.; Papadopoulos, Antonios I.; Panagopoulos, Periklis; Poulakou, Garyphallia G.; Sakka, V.; Chryssos, Georgios; Drimis, Stylianos; Gargalianos, Panagiotis; Lelekis, Moyssis I.; Chilomenos, G.; Psichogiou, Mina A.; Daikos, George L.; Panos, George; Haratsis, G.; Kordossis, Theodore; Kontos, Athanasios N.; Koratzanis, Georgios; Theodoridou, Maria C.; Mostrou, Glykeria J.; Spoulou, Vana I.; Coughlan, S.; De Gascun, C.; Byrne, C.; Duffy, M.; Bergin, C.; Reidy, D.; Farrell, G.; Lambert, J.; O'Connor, E.; Rochford, A.; Low, J.; Coakely, P.; O'Dea, S.; Hall, W.; Grossman, Z.; Levi, I.; Chemtob, D.; Balotta, Claudia; Riva, C.; Mussini, C.; Caramma, I.; Capetti, A.; Colombo, M. C.; Rossi, C.; Prati, F.; Tramuto, F.; Vitale, F.; Ciccozzi, M.; Angarano, G.; Rezza, G.; Schmit, J. C.; Struck, D.; Hemmer, R.; Arendt, V.; Staub, T.; Schneider, F.; Roman, F.; Wensing, A. M. J.; Boucher, C. A. B.; van Kessel, A.; van Bentum, P. H. M.; Brinkman, K.; op de Coul, E. L.; van der Ende, M. E.; Hoepelman, I.; van Kasteren, M.; Juttmann, J.; Kuipers, M.; Langebeek, N.; Richter, C.; Santegoets, R.; Schrijnders-Gudde, L.; Schuurman, R.; van de Ven, B. J. M.; A˚sjo¨, B.; Ormaasen, V.; Aavitsland, P.; Horban, A.; Stanczak, J. J.; Stanczak, G. P.; Firlag-Burkacka, E.; Wiercinska-Drapalo, A.; Jablonowska, E.; Malolepsza, E.; Leszczyszyn-Pynka, M.; Szata, W.; Camacho, Ricardo J.; Palma, C.; Borges, F.; Paixa&tild; o, T.; Duque, V.; Araújo, F.; Jevtovic, D.; Salemovic, D.; Stanekova, D.; Habekova, M.; Mokráš, Miloš; Truska, P.; Poljak, M.; Lunar, M.; Babic, Dunja Z.; Tomazic, J.; Vidmar, L.; Vovko, T.; Karner, P.; Clotet, B.; Domingo, P.; Galindo, M. J.; Miralles, C.; del Pozo, M. A.; Ribera, E.; Iribarren, J. A.; Ruiz, L.; de la Torre, J.; Vidal, F.; Garcia, F.; Paredes, R.; Albert, Jan; Heidarian, A.; Aperia-Peipke, K.; Axelsson, M.; Mild, M.; Karlsson, A.; So¨nnerborg, A.; Thalme, A.; Nave´r, L.; Bratt, G.; Karlsson, A.; Blaxhult, A.; Gissle´n, M.; Svennerholm, B.; Bergbrant, I.; Björkman, Per; Sa¨ll, C.; Mellgren, A˚; Lindholm, A.; Kuylenstierna, N.; Montelius, R.; Azimi, F.; Johansson, B.; Carlsson, M.; Johansson, E.; Ljungberg, B.; Ekvall, H.; Strand, A.; Ma¨kitalo, S.; o¨berg, S.; Holmblad, P.; Ho¨fer, M.; Holmberg, H.; Josefson, P.; Ryding, U. (2014)
      Background: One out of ten newly diagnosed patients in Europe was infected with a virus carrying a drug resistant mutation. We analysed the patterns over time for transmitted drug resistance mutations (TDRM) using data ...
    • Article  

      Molecular characterization of HIV type 1 strains from newly diagnosed patients in Cyprus (2007-2009) recovers multiple clades including unique recombinant strains and lack of transmitted drug resistance 

      Kousiappa, Ioanna; Achilleos, Charis; Hezka, Johana; Lazarou, Yiota; Othonos, Katerina M.; Demetriades, Ioannis; Kostrikis, Leontios G. (2011)
      HIV-1 evolution generates substantial genetic diversity among isolates, the majority of which are represented in areas where multiple strains cocirculate. A heterogeneous genetic HIV-1 pool has been found in Cyprus, directing ...
    • Article  

      Molecular epidemiology of hepatitis C infection in cyprus: Evidence of polyphyletic infection 

      Demetriou, Victoria L.; Van De Vijver, D. A. M. C.; Kostrikis, Leontios G.; Chimonides, S.; Evgeniou, N. A.; Hadjigeorgiou-Vounou, E.; Koliou-Mazeri, M.; Papakyriakou, P.; Petsas, L.; Potamitis, G. (2009)
      The genetic diversity of the hepatitis C virus (HCV) in Cyprus is investigated for the first time in this study. Nucleotide sequence analysis of the CORE-E1 and NS5B regions of the HCV genome was performed on blood plasma ...
    • Article  

      Near full-length genetic analysis of HIV sequences derived from Cyprus: Evidence of a highly polyphyletic and evolving infection 

      Kousiappa, Ioanna; Van De Vijver, D. A. M. C.; Kostrikis, Leontios G. (2009)
      The molecular epidemiology of HIV-1 infection was previously studied in Cyprus but the degree of HIV-1 diversity has remained indefinable. The main objective of the present study is to examine HIV-1 strains isolated from ...
    • Article  

      Near-full genome characterization of unclassified hepatitis c virus strains relating to genotypes 1 and 4 

      Demetriou, Victoria L.; Kostrikis, Leontios G. (2011)
      Near-full genome sequences are presented in this report for the first time of unclassified HCV strains amplified using RT-PCR from plasma of patients living in Cyprus. One strain appears to be a unique genotype-1-like ...
    • Article  

      Re-analysis of human immunodeficiency virus type 1 isolates from Cyprus and Greece, initially designated 'subtype I', reveals a unique complex A/G/H/K/? mosaic pattern 

      Paraskevis, Dimitrios N.; Magiorkinis, M.; Vandamme, A. M.; Kostrikis, Leontios G.; Hatzakis, Angelos E. (2001)
      Human immunodeficiency virus type 1 (HIV-1) has been classified into three main groups and 11 distinct subtypes. Moreover, several circulating recombinant forms (CRFs) of HIV-1 have been recently documented to have spread ...
    • Article  

      Short communication: Molecular epidemiology of HIV type 1 infection in northern Greece (2009-2010): Evidence of a transmission cluster of HIV Type 1 Subtype A1 drug-resistant strains among men who have sex with men 

      Antoniadou, Zoi Anna; Kousiappa, Ioanna; Skoura, Lemonia G.; Pilalas, Dimitrios; Metallidis, Simeon A.; Nicolaidis, Pavlos; Malisiovas, Nikolaos; Kostrikis, Leontios G. (2014)
      A prospective molecular epidemiology study of HIV-1 infection was conducted in newly diagnosed and antiretroviral-naive patients in Northern Greece between 2009 and 2010 using a predefined enrolling strategy. Phylogenetic ...
    • Article  

      Viral correlates of HIV-1 disease 

      Anastassopoulou, C. G.; Kostrikis, Leontios G. (2005)
      The transmission of HIV and the progression of HIV disease are influenced not only by a large number of human host factors, but also by certain correlates of the ever fluctuating virus quasispecies. The present review ...