Vaccines alone aren't enough to bring the pandemic under control, scientists have warned -something Chile has found out, the hard way. (Subscribe: https://bit.ly/C4_News_Subscribe)
Earlier this year the country appeared to be making huge strides - with one of the world's most ambitious and successful vaccination schemes.
But since then they've battled a second wave of coronavirus after opening up too soon and being hit with more infectious variants.
Our Latin America correspondent Guillermo Galdos reports.
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