The editors of Vaccines would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2013:
| Abel, Kristina | De Val, Bernat Pérez | Isaguliants, Maria |
| Acedo, L. | Dean, Gregg | Iurescia, Sandra |
| Ackerman, Margaret E. | Dempsey, Amanda F. | Kim, Kyung-Hyo |
| Agadjanyan, Michael | Derdeyn, Cynthia A. | Knudsen, Maria L. |
| Agwale, Simon M. | DiClemente, Ralph J. | Kobinger, Gary |
| Akiyama, Shinichiro | Dolstra, Harry | Koblin, Beryl |
| Antony, Paul A. | Dory, Daniel | Koff, Wayne C. |
| Barin, Francis | Duerr, Ann | Kortekaas, J. |
| Baron-Epel, Orna | Evans, Claire F. | Lao, T.T. |
| Barry, Peter | Fast, Patricia | Lapatra, Scott |
| Beckett, Charmagne G. | Field, Mark C. | Lau, Chuen-Yen |
| Biacchesi, Stéphane | Flick, Ramon | Lavail, Katherine Hart |
| Bigey, Pascal | Forde, Jonathan | Law, Barbara |
| Bjorkman, Pamela | Fujihashi, Kohtaro | Lichterfeld, Mathias |
| Brumme, Zabrina L. | Fujii, Shin-ichiro | Lin, Rongtuan |
| Castro, José María | Fujita, Mitsugu | Long, Elisa F. |
| Chang, Yung-Fu | Galli, Laura | Magez, S. |
| Chaput, Nathalie | Gianella, Sara | Mak, Kwok Kei |
| Chiappori, Alberto A. | Glanz, Jason | Martin, Michael |
| Cichutek, Klaus | Hanley, Sharon J.B. | Marzetta, Carol A. |
| Clayton, Christine | Harashima, Hideyoshi | McCune, Joseph (Mike) |
| Clements, C. John | Hertz, Tomer | Mcmichael, Andrew J. |
| Cossarizza, Andrea | Huh, Jooryung | Mcshane, Helen |
| Cowan, Anne | Inchauspé, Geneviève | Metzger, David S. |
| Metzger, Dennis W. | Ruffin, Mack | Tonyia, Eaves-Pyles |
| Mitchison, Timothy J. | Schneewind, Olaf | Trottein, François |
| Mizel, Steven B. | Schuitemaker, Hanneke | Tsui, Jennifer |
| Murtaugh, Michael | Seib, Katherine | Turner, Stephen |
| Nan, Xiaoli | Shapiro, Lawrence | Ueberla, Klaus |
| Nelson, Jennifer Clark | Shattock, Robin | Uzonna, Jude |
| Nemazee, David | Sheets, Rebecca L. | Van Wagoner, Nicholas J. |
| Niidome, Takuro | Shih, Mei-chiung | Villalba, Martin |
| Nowak, Glen | Simard, Edgar | Vitral, Claudia Lamarca |
| Palmu, Arto A. | Simon, Raphael | Wang, Xin |
| Papadimitriuou, Konstantinos | Slack, Mary | Warfield, Kelly L. |
| Pedersen, Anders E. | Slavcev, Roderick | Wicker, S. |
| Petrovsky, Nikolai | Smerdou, Christian | Willemen, Y. |
| Preat, Véronique | Smiley, Stephen | Williams, James A. |
| Purcell, Damian | Soren, Karen | Wyatt, Richard T. |
| Pushko, Peter | Spearman, Paul | Yusim, Karina |
| Rappuoli, Rino | Stansbury, James | Zakhartchouk, Alexander |
| Reisinger, Stephanie J. | Stone, Geoffrey W. | Zhu, Xiaoping |
| Rolland, Morgane | Sullender, Wayne | |
| Roxanne, Clark | Swamy, Geeta | |
| Rudolph, Carsten | Tomaras, Georgia D. |
© 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).