Papua New Guineans, genetically isolated for 50,000 years, carry Denisovan genes that help their immune system, study suggests

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Emily is a health news writer based in London, United Kingdom. She holds a bachelor's degree in biology from Durham University and a master's degree in clinical and therapeutic neuroscience from Oxford University. She has worked in science communication, medical writing and as a local news reporter while undertaking journalism training.

Papua New Guineans, who have been genetically isolated for millennia, carry unique genes that helped them fight off infection — and some of those genes come from our extinct human cousins, the Denisovans.

Not only is the predominantly mountainous terrain of the island country particularly challenging, but infectious diseases are also responsible for more than 40% of deaths. By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.In the new study, published April 30 in the journal Nature Communications, scientists analyzed the genomes of 54 highlanders from Mount Wilhelm who lived between 7,500 and 8,900 feet above sea level, and 74 lowlanders from Daru Island, who lived less than 330 feet above sea level.

 

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