So, here's the worldwide cumulative prevalence of COVID: https://ourworldindata.org/grapher/cumulative-covid-cases-region https://ourworldindata.org/grapher/cu

So, here's the worldwide cumulative prevalence of COVID: https://ourworldindata.org/grapher/cumulative-covid-cases-region https://ourworldindata.org/grapher/cumulative-covid-cases-re... Assuming a world population of 7.75 billion, that puts the estimated prevalence at about 3.5%. However, that's using confirmed cases. Estimates of actual cases would put it at 4-10 times higher (https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/burden.html https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/burd... or https://www.npr.org/sections/health-shots/2021/02/06/964527835/why-the-pandemic-is-10-times-worse-than-you-think https://www.npr.org/sections/health-shots/2021/02/06/9645278...). So that puts it at 14-35%, right around 25%. Although that's over the last 21 months or so, it means you're more likely than not going to be infected with it in the next few years.