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Total estimated COVID-19 infections worldwide

Question

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a positive-sense, single-stranded RNA coronavirus. It is contagious in humans and is the cause of the ongoing pandemic of coronavirus disease 2019 (COVID-19).

How many human infections of the 2019 novel coronavirus (COVID-19) will be estimated to have occurred before 2021, worldwide?

Resolution details:

In the last week of December 2021, Metaculus admin and community moderators will review a portion of credible scientific estimates published in the year 2021, of the cumulative total amount of human infections of SARS-CoV-2 (novel coronavirus) that occurred before the end of 2020. Admin and community moderators may decide to resolve this question on the basis of the median estimate considered they consider most credible, or decide to resolve this question as the median of all median estimates found by reviewing a portion of credible scientific literature.

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