Table 1 Cumulative deaths from 22 September 2020 through 28 February 2021, maximum estimated daily deaths per million, date of maximum daily deaths and estimated Reffective on 28 February 2021 for three boundary scenarios

From: Modeling COVID-19 scenarios for the United States

 

Mandate-easing scenario

Reference scenario

Universal mask-use scenario

Location

Cumulative deaths through 28 February 2021

Maximum estimated daily deaths per million

Date of maximum daily deaths

Estimated Reffective on 28 February 2021

Cumulative deaths through 28 February 2021

Maximum estimated daily deaths per million

Date of maximum daily deaths

Estimated Reffective on 28 February 2021

Cumulative deaths through 28 February 2021

Maximum estimated daily deaths per million

Date of maximum daily deaths

Estimated Reffective on 28 February 2021

United States

1,053,206 (759,693–1,452,397)

36.8 (22.2–58.2)

2/1/21

NA

511,373 (469,578–578,347)

9 (7.7–10.8)

1/3/21

NA

381,798 (336,479–421,953)

5.7 (4.1–7.2)

2/8/21

NA

California

161,608 (99,935–236,301)

57.4 (29.4–97.7)

1/30/21

0.72 (0.56–0.83)

79,721 (59,551–115,314)

17.1 (10–31)

2/9/21

0.87 (0.83–0.91)

47,604 (33,315–59,781)

10.3 (4.9–14.2)

2/3/21

0.84 (0.78–0.90)

Florida

80,372 (54,255–109,711)

38.9 (20.5–65.5)

1/19/21

0.75 (0.63–0.83)

30,321 (26,885–34,509)

8.5 (4.2–13.6)

11/22/20

1 (0.84–1.13)

29,813 (23,434–32,599)

6.7 (0.9–11.2)

1/8/21

0.77 (0.61–1.03)

New York

74,392 (42,508–124,731)

35.1 (8.4–80.2)

2/13/21

0.82 (0.57–1)

48,225 (42,312–58,216)

9.4 (4.1–17.4)

1/18/21

0.81 (0.67–0.95)

39,185 (34,507–48,002)

4.8 (1.1–12.1)

2/28/21

0.93 (0.63–1.20)

Pennsylvania

70,325 (38,291–101,138)

72.4 (25.4–141)

1/18/21

0.68 (0.51–0.83)

24,401 (19,274–35,847)

11.9 (6.6–18.5)

12/11/20

0.91 (0.85–1.03)

18,636 (15,932–21,673)

8.9 (4–15.3)

1/12/21

0.85 (0.71–1.01)

Texas

68,869 (48,205–95,486)

26.3 (15.2–44.6)

2/6/21

0.76 (0.65–0.87)

38,266 (35,595–41,524)

8.9 (3.5–14.1)

1/1/21

0.85 (0.73–0.99)

31,945 (23,134–38,995)

6.6 (2.2–12)

2/14/21

0.78 (0.6–1.1)

Illinois

45,452 (27,394–66,503)

41.3 (17.9–73.4)

1/27/21

0.74 (0.59–0.84)

20,231 (18,473–23,034)

10.7 (6.7–15.9)

12/18/20

0.91 (0.83–1)

14,427 (11,603–17,696)

5.9 (2.5–10.8)

2/27/21

0.87 (0.61–1.09)

New Jersey

41,116 (26,328–53,040)

42.4 (10.3–86.9)

1/18/21

0.67 (0.48–0.87)

25,375 (21,966–31,245)

12.5 (4.0–21.9)

12/27/20

0.85 (0.76–0.93)

22,074 (17,978–24,938)

8.6 (1.6–17.2)

1/21/21

0.8 (0.64–1.06)

Massachusetts

37,421 (21,047–60,070)

82.2 (34.3–151.1)

2/13/21

0.76 (0.56–0.92)

15,265 (14,410–16,616)

11.1 (5.6–18.7)

12/28/20

0.95 (0.83–1.09)

12,853 (10,640–14,578)

8.1 (2.3–15.3)

2/15/21

0.77 (0.61–1.19)

Michigan

35,052 (17,757–56,639)

42.1 (14.5–82.2)

2/2/21

0.77 (0.59–0.91)

14,723 (13,425–17,959)

9 (4.0–16.1)

12/22/20

0.91 (0.77–1.07)

10,857 (8,509–14,137)

5.2 (1.4–11.4)

2/28/21

0.89 (0.59–1.15)

North Carolina

33,376 (20,637–48,331)

41.4 (21.9–70.3)

1/31/21

0.73 (0.59–0.84)

15,841 (12,988–20,712)

11.4 (7.0–16)

12/28/20

0.87 (0.83–0.95)

11,311 (7,628–14,094)

8.8 (4.1–13.7)

2/1/21

0.81 (0.72–1.02)

Ohio

31,340 (15,582–59,015)

41.3 (16.4–78)

2/18/21

0.84 (0.67–0.97)

14,726 (12,604–17,230)

10.6 (6.0–15.7)

1/5/21

0.86 (0.78–0.95)

8,760 (6,455–11,897)

5.4 (1.7–10.5)

2/28/21

0.93 (0.66–1.1)

Georgia

28,981 (20,312–39,881)

23.7 (13–40.3)

1/30/21

0.77 (0.66–0.87)

16,137 (12,811–19,435)

7.1 (1.7–12.3)

12/18/20

0.9 (0.77–1.04)

13,406 (10062–16,710)

5.5 (2.8–9.6)

10/17/20

0.85 (0.63–1.05)

Missouri

28,823 (17,420–38,804)

55.4 (24.5–95.2)

1/9/21

0.68 (0.53–0.79)

8,916 (6,562–13,898)

9.1 (3.1–16.2)

11/7/20

0.92 (0.79–1.12)

6,468 (4,236–7,732)

6 (2–13.3)

10/19/20

0.84 (0.63–1.11)

Indiana

20,541 (12,126–31,620)

38.9 (17.4–69.1)

2/1/21

0.75 (0.60–0.86)

8,999 (8,203–10,209)

10.7 (6.2–16.2)

12/24/20

0.88 (0.80–0.97)

6,037 (4,606–7,925)

5.4 (1.9–10.4)

2/28/21

0.89 (0.6–1.09)

Connecticut

20,236 (7,729–36,134)

77.8 (14.5–173.2)

2/6/21

0.76 (0.49–1)

8,440 (6,677–12,584)

14.1 (5.3–24.2)

1/8/21

0.88 (0.78–0.93)

6,085 (4,796–7,707)

7.2 (1.3–16.4)

2/15/21

0.86 (0.66–1.2)

Arizona

20,061 (16,934–23,195)

22.3 (12.1–36.8)

1/4/21

0.69 (0.57–0.78)

12,641 (10,609–15,248)

8.1 (3.8–13.4)

11/27/20

0.93 (0.77–1.12)

10,512 (8,022–12,062)

6.4 (0.3–12.6)

2/1/21

0.79 (0.61–1.15)

Colorado

19,048 (8,823–28,900)

50.8 (16.2–104.1)

1/27/21

0.68 (0.47–0.86)

7679 (5827–11,652)

12.8 (5.9–20.9)

1/4/21

0.85 (0.79–0.95)

5,170 (3,001–6,984)

8.2 (2.4–15.2)

2/6/21

0.77 (0.63–1.08)

Maryland

18,909 (10,802–29,780)

39.8 (16–73.1)

2/3/21

0.74 (0.56–0.86)

9,374 (8,224–11,424)

11.7 (7.4–17.4)

1/3/21

0.87 (0.79–0.95)

7,175 (5,684–8,566)

7.6 (4–13.1)

2/13/21

0.76 (0.62–1.03)

Minnesota

17,074 (8,030–31,654)

45.3 (17–89.5)

2/9/21

0.78 (0.59–0.91)

6,140 (5,551–6,945)

9.9 (5.3–17.1)

12/29/20

0.85 (0.72–0.99)

4,384 (3,031–5,868)

5.5 (1.9–11.3)

2/14/21

0.82 (0.55–1.05)

Virginia

15,369 (4,481–39,116)

39.2 (4.7–96.7)

2/28/21

0.72 (0.55–0.85)

9,588 (3,883–21,963)

16.3 (1.60–54.4)

1/25/21

0.89 (0.80–1.04)

10,472 (7,005–14,528)

7 (1.1–12.6)

1/14/21

0.86 (0.69–1.09)

Alabama

14,326 (8,692–20,493)

30.1 (13.3–55.5)

1/19/21

0.73 (0.59–0.83)

7,967 (6,485–10,627)

9.9 (4.1–15.1)

12/30/20

0.85 (0.79–0.98)

5,327 (3,501–7,137)

5.3 (0.9–9.7)

2/12/21

0.86 (0.68–1.02)

South Carolina

13,695 (9,516–18,801)

25.3 (14.5–42.5)

2/4/21

0.79 (0.68–0.89)

7,718 (6,769–8,644)

7.9 (2.8–12.7)

12/17/20

0.91 (0.79–1.05)

5,812 (4,408–7,709)

4.8 (0.9–9)

2/28/21

0.91 (0.64–1.06)

Tennessee

13,202 (5,011–21,540)

22.6 (5.1–42.9)

2/6/21

0.79 (0.64–1)

7,819 (5,011–9,577)

8.5 (2.1–14.3)

1/3/21

0.84 (0.72–0.95)

5,207 (2,969–7,608)

5.1 (0.7–10.1)

2/17/21

0.88 (0.66–1.06)

Louisiana

12,841 (9,085–17,601)

23.8 (12.8–40.3)

2/13/21

0.8 (0.68–0.95)

9,546 (8,523–10,628)

9.8 (5.2–14.4)

1/11/21

0.83 (0.75–0.92)

7,347 (6,144–9,052)

5.1 (1.2–9.3)

2/28/21

0.92 (0.68–1.07)

Nevada

10,950 (6,285–16,934)

46.2 (22.3–83.1)

2/8/21

0.76 (0.60–0.89)

4,812 (4,137–5,995)

10.3 (4.8–16.3)

1/1/21

0.90 (0.82–1.02)

3,389 (2,267–4,468)

7.1 (2.5–12.7)

2/20/21

0.82 (0.65–1.12)

Kansas

10,345 (1,683–19,571)

51.9 (3.9–116.2)

1/28/21

0.76 (0.52–1.05)

3,906 (1,683–6,711)

12.3 (2.2–22)

1/8/21

0.84 (0.69–0.96)

2,147 (892–3,295)

6.4 (0.6–13.2)

1/27/21

0.84 (0.66–1.07)

New Mexico

10,135 (5,818–15,160)

67.6 (31.2–120.1)

1/28/21

0.69 (0.52–0.82)

3,798 (3,035–5,683)

12.6 (7.2–17.8)

12/26/20

0.88 (0.84–0.95)

2,424 (1,796–3,068)

9.2 (4.8–13.7)

2/5/21

0.79 (0.69–0.95)

Wisconsin

10,132 (3,850–22,064)

29.7 (8.8–62.3)

2/22/21

0.87 (0.66–1.04)

5,265 (3,850–6,278)

9 (3.7–15.3)

1/18/21

0.79 (0.66–0.92)

2,409 (1,674–3,896)

3.1 (0.7–8.2)

2/28/21

0.98 (0.66–1.12)

Arkansas

10,061 (4,186–16,701)

34 (11.3–64.9)

2/2/21

0.81 (0.67–0.97)

3,805 (2,983–4,848)

6.8 (2–13.2)

10/25/20

0.93 (0.73–1.14)

2,999 (1,914–4,109)

6.1 (2.1–12.6)

10/17/20

0.88 (0.63–1.05)

Oklahoma

10,040 (5,661–15,338)

29.4 (13.3–53.5)

1/24/21

0.74 (0.59–0.85)

4,101 (3,446–5,304)

8.5 (2.9–14.4)

12/17/20

0.91 (0.78–1.05)

3,234 (1,998–4,188)

5.5 (1.6–10.7)

2/1/21

0.81 (0.58–1.01)

Washington

9,814 (5,067–17,772)

20.5 (7.9–39.3)

2/18/21

0.97 (0.87–1.12)

6,246 (4,705–8,574)

7.9 (4.4–12.3)

1/27/21

0.89 (0.7–1.1)

3,695 (2,716–5,024)

3.6 (1–6.7)

2/25/21

0.95 (0.90–1.03)

Kentucky

9,145 (2,956–17,672)

29.9 (6.6–62.8)

2/11/21

0.81 (0.61–1.03)

4,452 (2,956–5,660)

9.4 (2.6–16.5)

1/7/21

0.82 (0.66–0.95)

2,310 (1,470–3,798)

4 (0.6–9.7)

2/28/21

0.93 (0.62–1.09)

Mississippi

8,579 (6,359–11,950)

17.4 (9.1–29.8)

1/29/21

0.8 (0.71–0.9)

5,589 (4,524–7,006)

8.1 (3.5–17.7)

10/21/20

0.90 (0.76–1.07)

4,675 (3,911–5,813)

7.8 (3.5–16.6)

10/17/20

0.91 (0.67–1.02)

Rhode Island

6,319 (4,470–8,029)

75.2 (36.7–122.2)

1/17/21

0.66 (0.52–0.77)

2,317 (2,043–2,774)

12.2 (7.9–17.6)

11/30/20

0.94 (0.85–1.1)

1,946 (1,793–2,063)

9 (4.2–14.7)

1/10/21

0.84 (0.70–1.01)

Nebraska

5,915 (1,913–11,379)

47.1 (11.1–97.1)

2/5/21

0.77 (0.57–0.96)

2,156 (1,615–2,854)

10.8 (4.2–17.4)

12/31/20

0.84 (0.71–0.95)

1,298 (710–1,862)

5.8 (1.2–11.9)

2/8/21

0.82 (0.62–1.04)

West Virginia

5,071 (1,441–10,594)

41.6 (9.8–86.3)

2/17/21

0.86 (0.66–1.05)

2,153 (1,374–3,073)

9.6 (3.7–14.8)

1/10/21

0.89 (0.76–0.99)

1302 (630–2,030)

6.2 (1.4–11.3)

2/21/21

0.89 (0.71–1.11)

Iowa

4,510 (1,887–11,237)

18.4 (2.7–51)

2/28/21

0.94 (0.79–1.1)

3,232 (1,887–4,193)

6.5 (1.4–13.1)

2/1/21

0.82 (0.66–1.08)

1,910 (1,482–3,042)

2.8 (1.3–5.3)

10/6/20

0.95 (0.89–1.03)

Idaho

4,144 (899–9,028)

37.5 (4.1–84.6)

2/19/21

0.85 (0.63–1.09)

1,823 (899–2,521)

8 (1.6–15.2)

1/17/21

0.86 (0.68–1.08)

1,110 (600–1,951)

4.9 (0.7–11.4)

2/27/21

0.89 (0.64–1.10)

North Dakota

3,254 (1,813–4,744)

42 (14.9–81)

12/27/20

0.74 (0.61–0.84)

994 (623–1,639)

14.4 (5.2–30.4)

10/20/20

0.93 (0.79–1.13)

661 (464–951)

13.2 (4.8–27.1)

10/18/20

0.93 (0.66–1.07)

Delaware

2,559 (1,722–3,370)

27.1 (12.2–45.3)

1/16/21

0.72 (0.58–0.82)

1,476 (1,316–1,754)

10.9 (6.2–15.9)

12/18/20

0.89 (0.82–0.95)

1,222 (963–1,375)

7.1 (3.1–12.7)

1/24/21

0.77 (0.63–1)

Montana

1,671 (387–4,215)

21 (2.5–51.7)

2/27/21

0.92 (0.77–1.08)

922 (387–1,272)

6.2 (0.8–12)

1/25/21

0.88 (0.71–1.09)

450 (249–900)

4.2 (1.7–9.7)

10/6/20

0.96 (0.85–1.05)

Hawaii

1,576 (389–4,692)

22.9 (2.4–75.3)

2/28/21

0.99 (0.84–1.15)

1,035 (389–1,676)

7.7 (1.7–13.1)

2/2/21

0.86 (0.71–1.08)

448 (244–891)

3.1 (0.6–9)

2/28/21

0.98 (0.74–1.14)

South Dakota

1,370 (436–3,479)

25.8 (3.6–66)

2/28/21

0.92 (0.74–1.1)

765 (436–933)

6.5 (1.4–13.6)

1/17/21

0.80 (0.60–1.07)

408 (284–750)

3.2 (2.2–4.4)

10/1/20

0.95 (0.60–1.08)

District of Columbia

1,339 (863–2,450)

29.3 (8.9–67)

2/28/21

0.94 (0.74–1.09)

1,039 (863–1,220)

10 (4.8–16.3)

2/2/21

0.79 (0.68–0.89)

723 (659–862)

3.2 (0.6–9.2)

2/28/21

1.07 (0.72–1.25)

Oregon

1,104 (666–2,065)

4.1 (0.4–14.4)

2/28/21

1.09 (0.96–1.29)

1,096 (666–2,065)

3.9 (0.4–12.4)

2/28/21

1.06 (0.75–1.27)

661 (600–806)

0.7 (0.7–0.7)

9/22/20

1.02 (0.96–1.12)

Utah

959 (506–3,110)

5.3 (0.3–34.5)

2/28/21

1.07 (0.93–1.25)

891 (506–2,180)

3.5 (0.3–12.4)

2/28/21

1 (0.60–1.24)

518 (472–687)

0.4 (0.3–0.6)

9/29/20

1.01 (0.95–1.12)

Alaska

733 (74–2,524)

9.3 (0.2–46.7)

12/27/20

0.81 (0.58–0.97)

406 (74–1174)

4.4 (0.2–16.7)

12/9/20

0.83 (0.62–0.97)

250 (67–707)

2 (0.1–11.7)

12/10/20

0.81 (0.63–0.96)

New Hampshire

539 (451–810)

2.5 (0.2–11.6)

2/28/21

1.07 (0.95–1.27)

539 (451–810)

2.5 (0.2–11.2)

2/28/21

1.05 (0.75–1.26)

447 (440–466)

0.2 (0.2–0.2)

9/22/20

0.98 (0.93–1.07)

Maine

279 (149–769)

3 (0–17.2)

2/28/21

1.07 (0.96–1.25)

274 (149–755)

2.6 (0–12.1)

2/28/21

1.04 (0.73–1.23)

161 (145–202)

0.3 (0.3–0.3)

9/22/20

0.99 (0.91–1.09)

Vermont

119 (66–426)

5.1 (0.2–40.3)

2/28/21

1.14 (0.91–1.45)

113 (66–370)

3.6 (0.2–19.3)

2/28/21

1.06 (0.79–1.37)

69 (63–87)

0.4 (0.1–1.8)

2/28/21

0.99 (0.76–1.32)

Wyoming

115 (53–446)

2.4 (0–18.3)

2/28/21

0.99 (0.84–1.13)

108 (53–387)

1.6 (0–9.2)

2/28/21

0.97 (0.71–1.13)

65 (53–104)

0.7 (0.7–0.7)

9/22/20

0.92 (0.7–1.02)

  1. Results for two additional derivative scenarios are available in the Supplementary Information. NA, not applicable.