Dataset of Communication Strategies of the Ministry of Health of Spain on Instagram before, during, and after the COVID-19 pandemic.

Based on a research study focused on the posts of the Spanish Ministry of Health on Instagram, 1412 posts were analyzed, divided into three periods: pre-pandemic, pandemic, and post-pandemic. During the pre-pandemic period, there were 313 posts with an average frequency of 0.56 posts per day, while in the pandemic and post-pandemic periods, the daily frequency increased to 1.55 and 0.85 respectively. Engagement showed significant variations, with notable increases during the pandemic and lower average values post-pandemic. The use of hashtags focused on topics such as #COVID19 and #MentalHealth during the pandemic, reflecting a strategy centered on public health issues.