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Us that vaccination is probably the best way to limit the spread of any variant. we don't know what the effectiveness or vaccines against omicron will be, but there would be some beneficial, there would be some level of protection, nonetheless, because it is a sars-cov-2 nonetheless, because it is a sars—cov—2 virus, so absolutely vaccination is probably the best way. we know quarantine measures work, the virus has spread really quickly, the world is connected, and we can already see that cases of omicron are being detected in many other parts of the world, not just many other parts of the...

Africa, quite frankly, we do need to protect them and other low income countries that have very little vaccine uptake that could protect them. and also, border closures also protect countries that haven't got herd immunity. and herd immunity with delta alone is near impossible, but you have to get the vaccine rate up very high to at least prevent people having to have hospital beds and ventilation. so, in fact, people having to have hospital beds and ventilation. so, infact, it people having to have hospital beds and ventilation. so, in fact, it is highly preconscious, but very good until we l...

Here it is. >> why is it that we're not seeing border closures, from people from belgium. why is it that we're not seeing border closures from people from hong kong. why is it that the uk now that has identified the virus, as well, is not being close to promising africa. it is unfair. and unacceptable. the same behavior we saw on vaccine supply, being locked out from africa, is we're seeing the same behavior of african bes be locked out from the world. it is not acceptable and should stop immediately. >> in fact, some experts and officials say instead of being applauded for discovering the new...

The variant within their borders already. as you heard, as well. many officials are saying, they're just trying to buy time at this point so they can figure out what they are dealing with. so despite the fact that some in south africa are criticizing these very sudden border closures, for officials within different countries, they are saying that at this point, they don't know what they are working with. so they want to try buy time for officials and scientists to figure out exactly what this new variant means for them. kim? >> paula hancocks in seoul, thanks very much. here in the u.s., the...

New Zealand's borders will remain closed over the next five months as the country takes precautions to fight the coronavirus, with officials planning to allow some international travelers to enter the nation in April.