Use of preventive measures, beliefs and information received about COVID-19 and their effects on mental health, in two stages of the pandemic in Colombia.

Better information on the effects and preventive measures to prevent the pandemic improves confidence in the health system and its professionals, reducing the level of PD. There is a need for quality information on social networks and an adaptation of telemedicine to address the pandemic effects on mental health.Key messagesPsychological distress (PD) decreased in February 2021, as compared to April 2020, due to a greater use of preventive measures against COVID-19, and the confidence on the recommendations made by health officials and professionals.Higher PD has been found in women and people who lived without a partner, in line with studies performed in other countries.The accessibility to quality information on the pandemic should be promoted by the Official Health Authorities, thus counteracting data that could be classified as "fake news".