The lockdown easing roadmap is still "on course" despite the Prime Minister warning Europe's third wave of coronavirus infections could "wash up on our shores".
Downing Street stressed the importance of the "very extensive" vaccination programme on Tuesday, as a row continued with the EU over its threat to impose an export block on jabs.
A year after the first national lockdown was imposed to limit the spread of Covid-19, there were concerns of rising infections in France and Italy.
The Prime Minister highlighted the precariousness of the situation, saying that "experience has taught us that when a wave hits our friends, it washes up on our shores as well".
Despite Mr Johnson warning that "I expect that we will feel those effects in due course", his official spokesman said cases were already expected to rise as England's third national lockdown is eased and said the plan to ease restrictions was on track.
The spokesperson said: "Obviously this time we have as a defence our very extensive vaccination programme.
"We remain on course for the individual steps in the road map. That hasn't changed."
Health Secretary Matt Hancock said there are currently no plans to put all of Europe on the travel "red list" after the prospect was raised on Monday by health minister Lord Bethell.
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The red list currently forces British nationals and people who are normally resident in the UK to quarantine in a Government-approved hotel for 10 days.
But government adviser, Professor Neil Ferguson argued against foreign holidays in the summer.
Speaking to the BBC's World at One he said: "I think we should be planning on summer holidays in the UK, not overseas."
