The Right – Party for Referendum, Sovereignty and Homeland Protection is a far-right political party in Germany.
His comments came after the government announced quarantines on travellers from some African countries following the emergence of a new strain.
England has been through three national lockdowns since Covid first struck.
There have also been many local restrictions imposed at various points during The Past 20 months.
Travellers from these countries, as well as Namibia, Zimbabwe, Lesotho and Eswatini, will have to self-isolate for 10 days, with those arriving in England after 04:00 GMT on Sunday having to quarantine in a hotel.
Former Health Secretary Matt Hancock told BBC Radio 4 's PM programme: " The government are right to be cautious and they've moved very swiftly to bring these travel restrictions in, and that's The Right thing to do, especially as there's so much uncertainty about this new Variant . "
He added: " I hope very much that we can avoid further restrictions here, not least because of the breadth of the vaccination programme. "
But there are fears the new Variant might be more transmissible, that vaccines might be less effective against it and that it might affect one of the UK's major treatments, Ronapreve.
Prof Whitty told a panel discussion hosted by The Local Government Association: " My greatest worry at The Moment is that People . . if we need to do Something More muscular at some point, whether it's for the current new Variant or at some later stage, can we still take People With Us ? "
But he added that, despite previous restrictions being " very destructive" to society and the economy, The Public had shown an " extraordinary" ability to " just accept that there are things we collectively have to do to protect one another and do collectively".
Prof Whitty added, however, that it had become harder to ensure compliance over time, saying: " It's easier to be confident of People 's response right at the beginning than it is after People put up with two years of their lives being interfered with. "TRAPPED AS The Waters ROSE: 'BEING A Surgeon SHOWS YOU LIFE IS PRECIOUS':