The Australian approach has been fairly good but this virus is persistent.
Once the lockdowns kicked in the doubling rate dropped dramatically and new case numbers went from a peak of around 500 a day to 10-20 day for a population 1/10 the US.
From /r/coronavirusdownunder linking the stats with the lock-down measures gives a good idea of the timeframe involved.
date cases growth doubling
2020-03-21 1071 1.22 3.1
2020-03-22 1352 1.26 3.3 <== 10 days ago, Tom Hanks
2020-03-23 1716 1.27 3.5
2020-03-24 2146 1.25 3.8
2020-03-25 2431 1.13 4.0 <== 10 days ago, overseas self-isolate 14 days
2020-03-26 2805 1.15 4.5 <== 10 days ago, Vic declare State of Emergency
2020-03-27 3179 1.13 5.3
2020-03-28 3639 1.14 6.4
2020-03-29 3985 1.1 7.0 <== 10 days ago, TAS self-isolation 14 days
2020-03-30 4250 1.07 8.0 <== 10 days ago, closing borders to all
2020-03-31 4560 1.07 9.3 <== 10 days ago, rule of 4 square metres
2020-04-01 4864 1.07 11.5
2020-04-02 5136 1.06 13.6 <== 10 days ago, no social gathering
2020-04-03 5358 1.04 15.6 <== 10 days ago, WA,SA closing border
2020-04-04 5552 1.04 18.7
2020-04-05 5687 1.02 22.9
2020-04-06 5795 1.02 28.1
2020-04-07 5908 1.02 33.1
2020-04-08 6013 1.02 38.8 <== 10 days ago, mandatory hotel quarantine
2020-04-09 6103 1.01 46.5
2020-04-10 6203 1.02 52.2
2020-04-11 6292 1.01 60.7
2020-04-12 6313 1.003 69.6
2020-04-13 6359 1.007 83.5 <== 10 days ago, QLD closing border
2020-04-14 6400 1.006 96.5
2020-04-15 6447 1.007 114.2
2020-04-16 6468 1.003 106.9
2020-04-17 6523 1.009 121.1
2020-04-18 6565 1.006 129.2
2020-04-19 6606 1.006 157.3
2020-04-20 6619 1.002 165.0 <== 10 days ago, Good Friday
2020-04-21 6645 1.004 210.6
2020-04-22 6649 1.001 247.4
2020-04-23 6661 1.002 307.7
2020-04-24 6675 1.002 301.3
2020-04-25 6695 1.003 350.7
2020-04-26 6711 1.002 298.7