总体来说，疫苗还是很有效的。看CDC住院和死亡的数据（4-7月份统计结果）

来源: 于 2021-09-16 05:05:43 [旧帖] [给我悄悄话] 本文已被阅读：次

https://www.cdc.gov/mmwr/volumes/70/wr/mm7037e1.htm

TABLE. Numbers, percentages, incidence rates, and incidence rate ratios * (in not fully vaccinated versus fully vaccinated persons) of COVID-19 cases, hospitalizations,† and deaths,§ by age group and vaccination status — 13 U.S. jurisdictions,** April 4–June 19 and June 20–July 17, 2021††Return to your place in the text
Age group, yrs Cases Hospitalizations Deaths
Not fully vaccinated Fully vaccinated Not fully vaccinated Fully vaccinated Not fully vaccinated Fully vaccinated
Totals 569,142 (92) 46,312 (8) 34,972 (92) 2,976 (8) 6,132 (91) 616 (9)
April 4–June 19
Total no. (% of total)
18–49 331,151 (97) 10,346 (3) 10,526 (97) 295 (3) 609 (99) 7 (1)
50–64 93,474 (94) 5,850 (6) 9,158 (95) 444 (5) 1,380 (96) 58 (4)
≥65 42,884 (85) 7,307 (15) 9,199 (88) 1,286 (12) 3,137 (90) 363 (10)
All ages 467,509 (95) 23,503 (5) 28,883 (93) 2,025 (7) 5,126 (92) 428 (8)
Average weekly incidence (events per 100,000 population)
18–49 122.4 10.9 4.6 0.3 0.2 0.0
50–64 98.3 9.1 11.4 0.8 1.5 0.1
≥65 91.6 8.5 22.8 1.8 6.7 0.4
All ages (crude) 113.4 9.6 8.3 1.0 1.2 0.2
All ages (age standardized) 112.3 10.1 9.1 0.7 1.6 0.1
Average weekly IRR (95% CI)
18–49 11.3 (6.7–18.8) 13.4 (9.5–18.8) 30.7 (11.5–81.5)
50–64 10.8 (7.4–15.7) 14.0 (11.2–17.6) 16.0 (11.2–22.8)
≥65 10.7 (8.3–13.9) 12.8 (10.0–16.4) 15.8 (12.2–20.4)
All ages (crude) 11.8 (8.1–17.2) 8.7 (6.4–11.8) 7.1 (4.9–10.2)
All ages (age standardized) 11.1 (7.8–15.8) 13.3 (11.3–15.6) 16.6 (13.5–20.4)
June 20–July 17
Total no. (% of total)
18–49 76,237 (85) 13,030 (15) 2,666 (95) 146 (5) 155 (96) 7 (4)
50–64 17,303 (77) 5,027 (23) 1,755 (88) 234 (12) 290 (93) 23 (7)
≥65 8,093 (63) 4,752 (37) 1,668 (74) 571 (26) 561 (78) 158 (22)
All ages 101,633 (82) 22,809 (18) 6,089 (86) 951 (14) 1,006 (84) 188 (16)
Average weekly incidence (per 100,000 population)
18–49 101.9 22.4 4.3 0.3 0.2 0.0
50–64 72.4 14.8 8.7 0.8 1.2 0.1
≥65 61.8 13.6 14.7 1.9 4.3 0.5
All ages (crude) 90.9 17.9 6.5 0.9 0.9 0.1
All ages (age standardized) 89.1 19.4 7.0 0.7 1.1 0.1
Average weekly IRR (95% CI)
18–49 4.5 (2.0–10.4) 15.2 (10.7–21.6) 17.2 (9.4–31.7)
50–64 4.9 (2.4–10.1) 10.9 (6.9–17.2) 17.9 (10.6–30.3)
≥65 4.6 (2.4–8.7) 7.6 (5.2–9.6) 9.6 (7.4–10.8)
All ages (crude) 5.1 (2.3–11.1) 7.6 (5.1–11.3) 6.1 (4.7–8.0)
All ages (age standardized)