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The Israeli ministry of health reports many statistics on Covid patients (Numbers of confirmed cases, hospitalizations, people in quarantine - Divided by age and other demographics) available here (Albeit only in Hebrew)

In any category, numbers below 15 are reported as <15 (see e.g. this table, with statistics on medical personnel cases). Someone told me this was for privacy protection reasons, but I don't understand why.

Does this make sense? How is privacy compromised if exact low numbers are published?

  • This is more of a data science issue. The problem is when you can correlate data sets and reduce a *combination* of results down to a single individual. –  Feb 16 '21 at 10:27

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It means any number lower than 15 is sufficiently small over a sufficiently large feature space so that identifiable data can be inferred by brute force reverse engineering.

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