TY - JOUR AU - Beran, Jiří AU - Wertzova, Veronika AU - Honegr, Karel AU - Kaliskova, Eva AU - Havlickova, Martina AU - Havlik, Jiří AU - Jirincova, Helena AU - Van Belle, Pascale AU - Jain, Varsha AU - Innis, Bruce AU - Devaster, Jeanne-Marie PY - 2009 DA - 2009/01/17 TI - Challenge of conducting a placebo-controlled randomized efficacy study for influenza vaccine in a season with low attack rate and a mismatched vaccine B strain: a concrete example JO - BMC Infectious Diseases SP - 2 VL - 9 IS - 1 AB - Our aim was to determine the efficacy of a trivalent inactivated split virus influenza vaccine (TIV) against culture-confirmed influenza A and/or B in adults 18 to 64 years of age during the 2005/2006 season in the Czech Republic. SN - 1471-2334 UR - https://doi.org/10.1186/1471-2334-9-2 DO - 10.1186/1471-2334-9-2 ID - Beran2009 ER -