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Calls for countries to work together on international travel.Â
Different governments have varying policies when it comes to vaccine passports and border rules. Â
Massey University's Paul Spoonley told Mike Hosking international clarity is needed.Â
"The rules are all over the place and we've got no harmonisation and nothing to say what are we going to do country to country to identify what it is we want from people travelling internationally."Â
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