Psychological antecedents of COVID-19 information sharing within strong-tie and weak-tie networks

•Negative emotions increased information sharing about COVID-19 within both strong-tie and weak-tie networks.•Beliefs that information sharing would benefit disease prevention only boosted sharing within strong-tie networks.•COVID-19 information acquisition from strong-tie networks was only associated with sharing within strong-tie networks.•Information acquisition from weak-tie networks was associated with sharing within both strong-tie and weak-tie networks.