This dataset contains data collected between November 15, 2021 and March 7, 2022, and between December 1, 2022 and February 6, 2023. It contains demographic variables, data on vaccinated people, responses to the items on the Fear of COVID-19 Scale, and to the items on the Vaccination Attitudes Examination (VAX) scale are included. Although the language of the open answers is Spanish, the name of the variables and the value labels are written in English to facilitate their understanding. Data and codebooks are provided in csv format, following the FAIR principles. Three files are provided: 1. Database Fear of COVID-19 and VAX, with the data related to sample characteristics and the answers to the items of the questionnaires. 2. Database codebook of variables, with information of the labels of the variables of the Database file. 3. Variable values codebook, with the labels of the values of the variables in the Database file.