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A logistic curve describes the European experience where quarantines etc. WERE enforced and effective.. In the US by contrast, some .people see voluntary quarantine as an infringement of their rights, and lacking firm leadership and with police forces declining to enforcing such local regulations in some cases, on a similar basis, the results are an uneasy leveling then resumption of total case increase. Now as the World leading sore spot of infections, an effective vaccine is the best hope for the yet uninfected population. Sad.