FWIW, there was a time when NY was providing about 50% of New Cases daily. Now it is lees than 5%. Italy has also all but quenched out. These indicate that there is a finite arc for the virus in each area where it is introduced.
Chinavirus is going away on its own, without a vaccine.
United States CHINAVIRUS Cases (includes "Recoveries")
Date New Total New Linear Model
Cases Cases Since
Actual Actual 5/9/2020
3/14/2020 2,717
3/15/2020 761 3,478
3/16/2020 1,167 4,645
3/17/2020 1,717 6,362
3/18/2020 1,407 7,769
3/19/2020 5,911 13,680
3/20/2020 5,605 19,285
3/21/2020 7,462 26,747
3/22/2020 8,478 35,225
3/23/2020 11,107 46,332
3/24/2020 8,816 55,148
3/25/2020 13,870 69,018
3/26/2020 16,635 85,653
3/27/2020 19,363 105,016
3/28/2020 19,448 124,464
3/29/2020 17,892 142,356
3/30/2020 22,003 164,359
3/31/2020 25,151 189,510
4/1/2020 27,005 216,515
4/2/2020 28,698 245,213
4/3/2020 32,740 277,953
4/4/2020 34,123 312,076
4/5/2020 25,544 337,620
4/6/2020 30,576 368,196
4/7/2020 31,916 400,112
4/8/2020 32,020 432,132
4/9/2020 33,618 465,750
4/10/2020 35,551 501,301
4/11/2020 31,942 533,243
4/12/2020 27,289 560,532
4/13/2020 26,623 587,155
4/14/2020 26,937 614,092
4/15/2020 30,468 644,560
4/16/2020 35,221 679,781
4/17/2020 30,550 710,331
4/18/2020 29,521 739,852
4/19/2020 24,413 764,265
4/20/2020 28,648 792,913
4/21/2020 32,128 825,041
4/22/2020 24,051 849,092
4/23/2020 37,617 886,709
4/24/2020 38,329 925,038
4/25/2020 35,858 960,896
4/26/2020 26,426 987,322
4/27/2020 23,185 1,010,507
4/28/2020 25,258 1,035,765
4/29/2020 28,807 1,064,572
4/30/2020 30,638 1,095,210
5/1/2020 36,242 1,131,452
5/2/2020 29,312 1,160,764
5/3/2020 27,358 1,188,122
5/4/2020 24,778 1,212,900
5/5/2020 24,763 1,237,663
5/6/2020 25,520 1,263,183
5/7/2020 29,440 1,292,623
5/8/2020 29,162 1,321,785
5/9/2020 25,524 1,347,309 1,347,309
5/10/2020 20,329 1,367,638 1,369,669
5/11/2020 18,196 1,385,834 1,392,029
5/12/2020 22,802 1,408,636 1,414,389
5/13/2020 21,712 1,430,348 1,436,749
5/14/2020 27,245 1,457,593 1,459,109
5/15/2020 26,692 1,484,285 1,481,469
5/16/2020 23,488 1,507,773 1,503,829
5/17/2020 19,891 1,527,664 1,526,189
5/18/2020 22,630 1,550,294 1,548,549
5/19/2020 20,279 1,570,573 1,570,909
5/20/2020 22,466 1,593,039 1,593,269
5/21/2020 27,863 1,620,902 1,615,629
5/22/2020 24,192 1,645,094 1,637,989
5/23/2020 21,734 1,666,828 1,660,349
5/24/2020 19,608 1,686,436 1,682,709
5/25/2020 19,790 1,706,226 1,705,069
5/26/2020 19,049 1,725,275 1,727,429
5/27/2020 20,528 1,745,803 1,749,789
5/28/2020 22,658 1,768,461 1,772,149
5/29/2020 25,069 1,793,530 1,794,509
5/30/2020 23,290 1,816,820 1,816,869
5/31/2020 20,350 1,837,170 1,839,229
6/1/2020 22,153 1,859,323 1,861,589
6/2/2020 1,883,949
6/3/2020 - 1,906,309
6/4/2020 - 1,928,669
6/5/2020 - 1,951,029
6/6/2020 - 1,973,389
6/7/2020 - 1,995,749
6/8/2020 - 2,018,109
6/9/2020 - 2,040,469
6/10/2020 - 2,062,829
6/11/2020 - 2,085,189
6/12/2020 - 2,107,549
6/13/2020 - 2,129,909
6/14/2020 - 2,152,269
6/15/2020 - 2,174,629
6/16/2020 - 2,196,989
6/17/2020 - 2,219,349
6/18/2020 - 2,241,709
6/19/2020 - 2,264,069
Your observation suggests that the virus has mutated and faded away. But the counts shall persist.