Rondy, Marc, Larrauri, A., Casado, I., Alfonsi, V., Pitigoi, D., Launay, O., Syrjänen, R. K., Gefenaite, G., Machado, A., Vučina, V. V., Horváth, J. K., Paradowska-Stankiewicz, I., Marbus, S. D., Gherasim, A., Díaz-González, J. A., Rizzo, C., Ivanciuc, A. E., Galtier, F., Ikonen, N., Mickiene, A., Gomez, V., Kurečić Filipović, S., Ferenczi, A., Korcinska, M. R., Van Gageldonk-Lafeber, R., Valenciano, M., Altzibar, Jone M., Arraras, Ion Garcia, Cilla, Gustavo, Marco, Elisa, Vidal, Matxalen, Omenaca, Manuel, Castilla, J., Navascues, A., Ezpeleta, C., Barrado, L., Ortega, M. T., Bella, A., Castrucci, M. R., Puzelli, S., Chironna, M., Germinario, C., Ansaldi, F., Orsi, A., Manini, I., Montomoli, E., Lupulescu, E., Lazar, M., Cherciu, C. M., Tecu, C., Mihai, M. E., Nitescu, M., Leca, D., Ceausu, E., Lenzi, N., Lesieur, Z., Loulergue, P., Foulongne, V., Letois, F., Merle, C., Vanhems, P., Lina, B., Nohynek, H., Haveri, A., Kuliese, M., Velyvyte, D., Grimalauskaite, R., Damuleviciene, G., Lesauskaite, V., Jancoriene, L., Zablockiene, B., Ambrozaitis, A., Nunes, B., Rodrigues, A. P., Gomes, V., Corte-Real, R., Pocas, J., Peres, M. J., Kaić, B., Oroszi, B., Brydak, L. B., Cieślak, K., Kowalczyk, D., Szymański, K., Jakubik, A., Skolimowska, G., Hulboj, D., Meijer, A., Van Der Hoek, W., Schneeberger, P. M., Palmieri, Annapina, Giannitelli, Stefania, Ranghiasci, Alessia, Bacruban, Rodica, Azamfire, Delia, Dumitrescu, Aura, Ianosik, Elena, Duca, Elena, Bejan, Codrina, Teodor, Andra, Florescu, Simin-Aysel, Popescu, Corneliu, Tardei, Gratiela, Charpentier, Julien, Marin, Nathalie, Doumenc, Benoit, Le Jeunne, Claire, Krivine, Anne, Momcilovic, Sonia, Benet, Thomas, Amour, Selilah, Henaff, Laetitia, Jokinen, Jukka, Lyytikainen, Outi, Palmu, Arto, Siren, Paivi, Ruokokoski, Esa, Nunes, Baltazar, Rodrigues, Ana Paula, Guiomar, Raquel, Gomes, Victor, Quaresma, Filipa, Vale, Luis, Garcia, Teresa, Bernardo, Teresa, Dias, Liliana, Fonseca, Paula, Amorim, Helena, Rolo, Joao, Pacheco, Helena, Branquinho, Paula, Corte-Real, Rita, Pocas, Jose, Lopes, Paula, Peres, Maria Joao, Ribeiro, Rosa, Duarte, Paula, Pedroso, Ermelinda, Rodrigues, Sara, Silverio, Ana Rita, Pedreira, Diana Gomes, Fonseca, Marta Ferreira, Vince, Adriana, Topić, Antea, Papić, Neven, Mihalić, Jelena Budimir, Novosel, Iva Pem, Petrović, Goranka, Zajec, Martina, Draženović, Vladimir, Hercegh, Eva, Szalai, Balint, Antmann, Katalin, Nagy, Kamilla, Unión Europea, EpiConcept, Institute of Health Carlos III, CIBER de Epidemiología y Salud Pública (CIBERESP), Istituto Superiore de Sanita, University of Medicine and Pharmacy 'Carol Davila' Bucharest (UMPCD), Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Instituto Nacional de Saùde Dr Ricardo Jorge [Portugal] (INSA), CIC Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-CHU Saint-Eloi-Institut National de la Santé et de la Recherche Médicale (INSERM), F-CRIN, Innovative clinical research network in vaccinology (I-REIVAC), Institut National de la Santé et de la Recherche Médicale (INSERM), National Institute for Health and Welfare [Helsinki], and National Institute for Public Health and the Environment [Bilthoven] (RIVM)