Johnson made the comments during a government Covid briefing on Monday (19 July), appearing via video link from his self-isolation at Chequers after he was "pinged" by the NHS Test and Trace app at the weekend.
"Some of life’s most important pleasures and opportunities are likely to be increasingly dependent on vaccination," said Johnson.
"There are already countries that require you to be double-jabbed as a condition of quarantine-free travel, and I’m afraid that list seems likely to grow."
