IRCT20210121050096N1 IRCT 2021-11-21 Tehran University of Medical Sciences Evaluating the effectiveness of influenza vaccine in kidney transplant recipients in Imam Khomeini Hospital Comparison of safety and efficacy of standard dose and doubling of seasonal flu vaccine in patients receiving kidney transplantation in Imam Khomeini Hospital, 2021 2021-09-06 anticipated 60 Complete https://irct.ir/trial/54007 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Prevention, Randomization description: Blocking is commonly used to balance the number of samples assigned to each of the study groups and helps to ensure that the number of samples assigned to each of the study groups is equal. The tool for generating random block sequences in this study is Random allocation software. In this clinical trial of 60 people (including 30 people in the double dose group of influenza vaccine and 30 people in the single dose group of influenza vaccine) 10 blocks of 6 will be formed. In each block, 6 people including 3 participants will be assigned to the Double dose group and 3 participants to the Single dose group. 1-2 Kidney Transplant Recipients. Intervention 1: Intervention group: Receiving a standard dose of seasonal influenzae tetravalent vaccine (15μg of Hemophilus Influenza Antigen). This 2021-2022 vaccine is inactivated and is made by the Dutch company Abbott. The brand name of this vaccine is Influvac. The viral strains of this vaccine include the following: A/Victoria/2570/2019 (H1N1)pdm09-like strainA/Cambodia/e0826360/2020 (H3N2)-like strainB/Washington/02/2019-like strainB/Phuket/3073/2013-like strain. Intervention 2: Intervention group: Receiving a double dose of seasonal influenzae tetravalent vaccine (30μg of Hemophilus Influenza Antigen). This 2021-2022 vaccine is inactivated and is made by the Dutch company Abbott. The brand name of this vaccine is Influvac. The viral strains of this vaccine include the following: A/Victoria/2570/2019 (H1N1)pdm09-like strainA/Cambodia/e0826360/2020 (H3N2)-like strainB/Washington/02/2019-like strainB/Phuket/3073/2013-like strain. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No further information is available.