[Adherence to influenza vaccination campaign 2020/21 in the pandemic SARS-CoV-2. Context analysis in management changes: A pilot study]. / Adherencia a la campaña de vacunación de la gripe 2020/21 en el contexto de la pandemia de SARS-CoV-2. Análisis de los cambios en la gestión: un estudio piloto.

INTRODUCTION: Vaccination campaigns against influenza virus achieve coverages under recommended and desired values. In current context of SARS-CoV-2 pandemic it becomes more relevant. Our objective is to evaluate the impact on vaccination coverage of a set of implementation strategies carried out. MATERIAL AND METHODS: Vaccine implementation strategies were introduced in our basic health zone as active caption of patients and schedule extension. Then the vaccination coverage achieved in the current campaign was evaluated and compared with previous in the 8th week and at the end of the campaign. Besides, a transversal study through a survey was carried out to measure the impact of the applied strategies. RESULTS: In the 8th week of the campaign significant differences were detected in the increase of vaccination coverage compared with previous years. These results were confirmed at the end of the campaign, getting a significant difference (<.05) of vaccination coverage in all the studied centers, these data support the effectivity of the applied strategies. CONCLUSIONS: The vaccine implementation strategies applied have shown effectivity, achieving an increase of until 74% in the total administered doses compared to previous campaigns and even a 15% of vaccination coverage increased in the group of patients older than 64 years; even in a pandemic context and the increasing of anti-vaccine movements.