• Article  

      Cellular HIV-1 DNA levels in drug sensitive strains are equivalent to those in drug resistant strains in newly-diagnosed patients in Europe 

      Demetriou, Victoria L.; van de Vijver, D. A. M. C.; Kousiappa, Ioanna; Balotta, Claudia; Clotet, B.; Grossman, Z.; Jørgensen, L. B.; Lepej, S. Z.; Levy, I.; Nielsen, C.; Paraskevis, Dimitrios N.; Poljak, M.; Roman, F.; Ruiz, L.; Schmidt, J. -C; Vandamme, A. -M; van Laethem, K. V.; Vercauteren, J.; Kostrikis, Leontios G. (2010)
      Background HIV-1 genotypic drug resistance is an important threat to the success of antiretroviral therapy and transmitted resistance has reached 9% prevalence in Europe. Studies have demonstrated that HIV-1 DNA load in ...
    • Article  

      Genetic analysis of HIV type 1 strains from newly infected untreated patients in cyprus: high genetic diversity and low prevalence of drug resistance. 

      Kousiappa, Ioanna; van de Vijver, D. A.; Demetriades, Ioannis; Kostrikis, Leontios G. (2009)
      Abstract The molecular epidemiology of HIV-1 infection was first studied in Cyprus in the mid-1990s, but the extent of HIV-1 diversity and the prevalence of drug resistance have remained elusive. In an effort to address ...
    • Article  

      Patterns of transmitted HIV drug resistance in Europe vary by risk group 

      Frentz, D.; Van De Vijver, D.; Abecasis, A. B.; Albert, Jan; Hamouda, O.; Jørgensen, L.; Kücherer, C.; Struck, D.; Schmit, J. -C; Vercauteren, J.; Åsjö, Birgitta; Balotta, Claudia; Bergin, C.; Beshkov, Danail; Camacho, Ricardo J.; Clotet, B.; Griskevicius, A.; Grossman, Z.; Horban, A.; Kolupajeva, T.; Korn, K.; Kostrikis, Leontios G.; Linka, K. L. M.; Nielsen, C.; Otelea, D.; Paraskevis, Dimitrios N.; Paredes, R.; Poljak, M.; Puchhammer-Stöckl, E.; Sönnerborg, A.; Stanekova, D.; Stanojevic, M.; Vandamme, A. -M; Boucher, C.; Wensing, A. (2014)
      Background: In Europe, a continuous programme (SPREAD) has been in place for ten years to study transmission of drug resistant HIV. We analysed time trends of transmitted drug resistance mutations (TDRM) in relation to the ...
    • Article  

      Primary resistance to integrase strand-transfer inhibitors in Europe 

      Moutschen, M.; Casadellà, M.; van Ham, P. M.; Noguera-Julian, M.; van Kessel, A.; Pou, C.; Hofstra, Laura Marije Arije; Santos, J. R.; Garcia, F.; Struck, D.; Alexiev, Ivailo; Bakken Kran, A. M.; Hoepelman, A. I.; Kostrikis, Leontios G.; Somogyi, Sybille; Liitsola, K.; Linka, M.; Nielsen, C.; Otelea, D.; Paraskevis, Dimitrios N.; Poljak, M.; Puchhammer-Stöckl, E.; Staneková, D.; Stanojevic, M.; Van Laethem, K.; Zidovec Lepej, S.; Clotet, B.; Boucher, C. A. B.; Paredes, R.; Wensing, A. M. J.; Puchhammer-Stöckl, 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.; 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.; Beshkov, Danail; Alexiev, Ivailo; Zidovec Lepej, S.; Begovac, J.; Demetriades, Ioannis; Kousiappa, Ioanna; Demetriou, Victoria L.; Hezka, Johana; Linka, M.; Machala, L.; Maly, M.; Nielsen, C.; Jørgensen, L. B.; Gerstoft, J.; Mathiesen, L.; Pedersen, C.; Nielsen, H.; Laursen, A.; Kvinesdal, B.; Liitsola, K.; Ristola, M.; Suni, J.; Sutinen, J.; Hamouda, O.; Kücherer, C.; Berg, T.; Braun, P.; Poggensee, G.; Däumer, M.; Eberle, J.; Heiken, H.; Kaiser, R.; Knechten, H.; Korn, K.; Müller, 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.; Sabatakou, H.; Panos, George; Haratsis, G.; Kordossis, Theodore; Kontos, Athanasios N.; Koratzanis, Georgios; Theodoridou, Maria C.; Mostrou, Glykeria J.; Spoulou, Vana I.; Schmit, J. C.; Struck, D.; Hemmer, R.; Arendt, V.; Staub, T.; Schneider, F.; Roman, F.; Wensing, A. M.; Boucher, C. A.; van de Vijver, D. A.; van Kessel, A.; van, P. H.; Brinkman, K.; Op de, E. L.; van der Ende, M. E.; Hoepelman, I. M.; van Kasteren, M.; Juttmann, J.; Kuipers, M.; Langebeek, N.; Richter, C.; Santegoets, R. M.; Schrijnders-Gudde, L.; Schuurman, R.; van de Ven, B. J.; Åsjö, Birgitta; Bakken, A. M.; Ormaasen, V.; Aavitsland, P.; Otelea, D.; Paraschiv, S.; Tudor, A. M.; 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.; Garcia, F.; Domingo, P.; Galindo, M. J.; Miralles, C.; Del, M. A.; Ribera, E.; Iribarren, J. A.; Ruiz, L.; de la Torre, J.; Vidal, F.; Garcia, F.; Paredes, R. (2015)
      Objectives: The objective of this study was to define the natural genotypic variation of the HIV-1 integrase gene across Europe for epidemiological surveillance of integrase strand-transfer inhibitor (InSTI) resistance. ...
    • 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  

      Transmission of drug-resistant HIV-1 is stabilizing in Europe 

      Vercauteren, J.; Wensing, A. M. J.; Van De Vijver, D. A. M. C.; Albert, Jan; Balotta, Claudia; Hamouda, O.; Kücherer, C.; Struck, D.; Schmit, J. -C; Åsjö, Birgitta; Bruckova, M.; Camacho, Ricardo J.; Clotet, B.; Coughlan, S.; Grossman, Z.; Horban, A.; Korn, K.; Kostrikis, Leontios G.; Nielsen, C.; Paraskevis, Dimitrios N.; Poljak, M.; Puchhammer-Stöckl, E.; Riva, C.; Ruiz, L.; Salminen, M.; Schuurman, R.; Sonnerborg, A.; Stanekova, D.; Stanojevic, M.; Vandamme, A. M.; Boucher, C. A. B. (2009)
      The SPREAD Programme investigated prospectively the time trend from September 2002 through December 2005 of transmitted drug resistance (TDR) among 2793 patients in 20 European countries and in Israel with newly diagnosed ...
    • Article  

      Transmission of HIV drug resistance and the predicted effect on current first-line regimens in Europe 

      Moutschen, M.; Hofstra, Laura Marije Arije; Sauvageot, Nicolas; Albert, Jan; Alexiev, Ivailo; Garcia, F.; Struck, D.; Van De Vijver, D. A. M. C.; Åsjö, Birgitta; Beshkov, Danail; Coughlan, S.; Descamps, D.; Griskevicius, A.; Hamouda, O.; Horban, A.; Van Kasteren, M.; Kolupajeva, T.; Kostrikis, Leontios G.; Liitsola, K.; Linka, M.; Mor, O.; Nielsen, C.; Otelea, D.; Paraskevis, Dimitrios N.; Paredes, R.; Poljak, M.; Puchhammer-Stöckl, E.; Sönnerborg, A.; Staneková, D.; Stanojevic, M.; Van Laethem, K.; Zazzi, M.; Lepej, S. Z.; Boucher, C. A. B.; Schmit, J. -C; Wensing, A. M. J.; 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.; Beshkov, Danail; Alexiev, Ivailo; Lepej, S. Z.; Begovac, J.; Kostrikis, Leontios G.; Demetriades, Ioannis; Kousiappa, Ioanna; Demetriou, Victoria L.; Hezka, Johana; Linka, M.; Maly, M.; Machala, L.; Nielsen, C.; Jørgensen, L. B.; Gerstoft, J.; Mathiesen, L.; Pedersen, C.; Nielsen, H.; Laursen, A.; Kvinesdal, B.; Liitsola, K.; Ristola, M.; Suni, J.; Sutinen, J.; Descamps, D.; Assoumou, L.; Castor, G.; Grude, M.; Flandre, P.; Storto, A.; Hamouda, O.; Kücherer, C.; Berg, T.; Braun, P.; Poggensee, G.; Däumer, M.; Eberle, J.; Heiken, H.; Kaiser, R.; Knechten, H.; Korn, K.; Müller, H.; Neifer, S.; Schmidt, B.; Walter, H.; Gunsenheimer-Bartmeyer, B.; Harrer, T.; Paraskevis, Dimitrios N.; Hatzakis, Angelos E.; Zavitsanou, Assimina; Vassilakis, A.; Lazanas, Marios C.; Chini, Maria C.; Lioni, A.; Sakka, V.; Kourkounti, Sofia; Paparizos, Vassilios A.; Antoniadou, Anastasia C.; Papadopoulos, Antonios I.; Poulakou, Garyphallia G.; Katsarolis, I.; Protopapas, K.; Chryssos, Georgios; Drimis, Stylianos; Gargalianos, Panagiotis; Xylomenos, Georgios; Lourida, G.; Psichogiou, Mina A.; Daikos, George L.; Sipsas, N. V.; Kontos, Athanasios N.; Gamaletsou, M. N.; Koratzanis, Georgios; Sambatakou, E.; Mariolis, H.; Skoutelis, A.; Papastamopoulos, V.; Georgiou, O.; Panagopoulos, Periklis; Maltezos, E.; 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.; Mor, O.; Levi, I.; Chemtob, D.; Grossman, Z.; Zazzi, M.; De Luca, A.; 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.; Kolupajeva, T.; Kolupajeva, T.; Vasins, O.; Griskevicius, A.; Lipnickiene, V.; Schmit, J. C.; Struck, D.; Sauvageot, Nicolas; Hemmer, R.; Arendt, V.; Michaux, C.; Staub, T.; Sequin-Devaux, C.; Wensing, A. M. J.; Boucher, C. A. B.; Van Kessel, A.; Van Bentum, P. H. M.; Brinkman, K.; Connell, B. J.; Van Der Ende, M. E.; Hoepelman, I. M.; Van Kasteren, M.; Kuipers, M.; Langebeek, N.; Richter, C.; Santegoets, R. M. W. J.; Schrijnders-Gudde, L.; Schuurman, R.; Van De Ven, B. J. M.; Åsjö, Birgitta; Kran, A. -M B.; Ormaasen, V.; Aavitsland, P.; Horban, A.; Stanczak, J. J.; Stanczak, G. P.; Firlag-Burkacka, E.; Wiercinska-Drapalo, A.; Jablonowska, E.; Maolepsza, E.; Leszczyszyn-Pynka, M.; Szata, W.; Camacho, Ricardo J.; Palma, C.; Borges, F.; Paixão, T.; Duque, V.; Araújo, F.; Otelea, D.; Paraschiv, S.; Tudor, A. M.; Cernat, R.; Chiriac, C.; Dumitrescu, F.; Prisecariu, L. J.; Jevtovic, Dj; Salemovic, D.; Stanekova, D.; Habekova, M.; Chabadová, Z.; Drobkova, T.; Bukovinova, P.; Shunnar, A.; Truska, P.; Poljak, M.; Lunar, M.; Babic, Dunja Z.; Tomazic, J.; Vidmar, L.; Vovko, T.; Karner, P.; Garcia, F.; Paredes, R.; Monge, S.; Moreno, S.; Del Amo, J.; Asensi, V.; Sirvent, J. L.; De Mendoza, C.; Delgado, R.; Gutiérrez, F.; Berenguer, J.; Garcia-Bujalance, S.; Stella, Natalia C.; Blanco, J. R.; Dalmau, D.; Rivero, M.; Segura, F.; Elıás, Marıá Jesús Pérez; Alvarez, M.; Chueca, N.; Rodríguez-Martín, C.; Vidal, C.; Palomares, J. C.; Viciana, I.; Viciana, P.; Cordoba, J.; Aguilera, A.; Domingo, P.; Galindo, M. J.; Miralles, C.; Del Pozo, M. A.; Ribera, E.; Iribarren, J. A.; Ruiz, L.; De La Torre, J.; Vidal, F.; Clotet, B.; Albert, Jan; Heidarian, A.; Aperia-Peipke, K.; Axelsson, M.; Mild, M.; Karlsson, A.; Sönnerborg, A.; Thalme, A.; Navér, L.; Bratt, G.; Karlsson, A.; Blaxhult, A.; Gisslén, M.; Svennerholm, B.; Bergbrant, I.; Björkman, Per; Säll, C.; Mellgren, Å.; Lindholm, A.; Kuylenstierna, N.; Montelius, R.; Azimi, F.; Johansson, B.; Carlsson, M.; Johansson, E.; Ljungberg, B.; Ekvall, H.; Strand, A.; Mäkitalo, S.; Öberg, S.; Holmblad, P.; Höfer, M.; Holmberg, H.; Josefson, P.; Ryding, U.; De Los Santos, I. (2016)
      Background. Numerous studies have shown that baseline drug resistance patterns may influence the outcome of antiretroviral therapy. Therefore, guidelines recommend drug resistance testing to guide the choice of initial ...
    • Article  

      Trends and predictors of transmitted drug resistance (TDR) and clusters with TDR in a local Belgian HIV-1 epidemic 

      Pineda-Peña, A. -C; Schrooten, Y.; Vinken, L.; Ferreira, F.; Li, G.; Trovão, N. S.; Khouri, R.; Derdelinckx, I.; De Munter, P.; Kuc̈herer, C.; Kostrikis, Leontios G.; Nielsen, C.; Littsola, K.; Wensing, A.; Stanojevic, M.; Paredes, R.; Balotta, Claudia; Albert, Jan; Boucher, C.; Gomez-Lopez, A.; Van Wijngaerden, E.; Van Ranst, M.; Vercauteren, J.; Vandamme, A. M.; Van Laethem, K. (2014)
      We aimed to study epidemic trends and predictors for transmitted drug resistance (TDR) in our region, its clinical impact and its association with transmission clusters. We included 778 patients from the AIDS Reference ...