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Health

By some published surveys, Tonga has one of the highest obesity rates in the world. World Health Organization data published in 2014 indicate that Tonga stands fourth overall in terms of countries listed by mean body mass index data. In 2011, 90% of the adult population were considered overweight using NIH interpretation of body mass index (BMI) data, with more than 60% of those obese. 70% of Tongan females aged 15–85 are obese. Tonga and Nauru have the world's highest overweight and obese populations.

In late October 2021, Tonga reported its first case of COVID-19 based on a New Zealand air passenger's positive test.