https://www.moneycontrol.com/news/world/50-70-of-those-under-19-years-globally-still-susceptible-to-sars-cov-2-study-9793081.html
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It also found that worldwide seroprevalence estimates varied from 7.3 per cent in the first wave of the COVID-19 pandemic to 37.6 per cent in the fifth wave and 56.6 per cent in the sixth wave.
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