What percentage of people develop COVID-19 symptoms within 11.5 days of exposure?

Answer

Approximately 97.5%

Statistical observations regarding the COVID-19 incubation window indicate a high likelihood of symptom manifestation within a relatively short time frame following exposure. Specifically, studies show that a substantial majority, approximating 97.5% of individuals who will ultimately develop symptoms, will present them within 11.5 days of initial viral contact. While this figure serves as a practical upper boundary for many public health observation guidelines, the possibility of extremely rare, longer incubation periods technically exists, though they fall outside this common statistical bracket.

What percentage of people develop COVID-19 symptoms within 11.5 days of exposure?
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