He is remembered by family at his funeral as "a beacon of light and hope to the world".
More than half a million people were vaccinated on Friday, as phase two of the vaccine programme continues.
The chancellor says public finances are facing a "challenge" from the impact of the pandemic.
Bomb disposal specialists deal with the 2.5m (8ft) device, which caused 2,600 homes to be evacuated.
The Glasgow MSP defeated rival candidate Monica Lennon in the contest to replace Richard Leonard.