The Impact of Changing Social Support on Older Persons' Onset of Loneliness During the COVID-19 Pandemic in the United Kingdom.

During the 3 COVID-19-related lockdowns in the United Kingdom, changes in older people's social networks and support resulted in a significant onset of loneliness. Findings highlight the risks of shielding older persons from COVID-19 in terms of their mental well-being and the importance of strengthening intergenerational support.