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Living at high altitudes may offer natural defense against COVID-19

Just 916 of Peru’s 141,000 cases come from the Cusco region, meaning its contagion rate is more than 80 percent ...
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Invading armies not to blame for fall of ancient Andean cultures, genetic analysis shows

An international team has conducted what it says is the first in-depth, wide-scale study of the genomic history of ancient ...