Table 1.
Estimated outcomes averted through COVID-19 mass vaccination program by the vaccination status and age group, Brazil January 31, 2021, to January 31, 2022.
| Age group | Population estimate | Severe COVID-19 cases averted | COVID-19 deaths averted |
|---|---|---|---|
| Individuals at least partially vaccinateda | |||
| 20–29 years | 34,069,012 | 28,663·9 (22,183·7–37,654·14) | 5,008·9 (646·3–9,064·2) |
| 30–39 years | 34,259,369 | 103,031·5 (94,904·1–112,048·45) | 16,824·9 (12,507·5–20,950·4) |
| 40–49 years | 29,854,837 | 161,651·9 (154,595·4–169,433·8) | 35,093·7 (31,420·9–38,707·5) |
| 50–59 years | 24,234,960 | 190,931·9 (185,403·6–197,265·6) | 58,311·7 (55,346·5–61,277·0) |
| 60–69 years | 17,295,908 | 249,724·3 (246,192·3–254,204·2) | 108,441·5 (106,344·1–110,538·9) |
| 70–79 years | 9,416,919 | 119,119·4 (117,944·3–121,547·0) | 65,898·9 (64,762·37–67,035·4) |
| 80–89 years | 3,761,197 | 20,507·2 (20,323·2–21,479·8) | 12,314·2 (11,858·9–12,759·5) |
| ≥ 90 years | 856,211 | 1,856·1 (1,837·1–2,076·1) | 1,235·3 (1,132·3–1,338·33) |
| ≥ 20 years | 153,748,413 | 875,486·5 (843,383·0–915,709·4) | 303,129·4 (284,019·1–321,681·5) |
| Individuals fully vaccinatedb | |||
| 20–29 years | 34,069,012 | 44,486·3 (39,933·0–49,346·8) | 5,906·9 (3,059·6–8,583·5) |
| 30–39 years | 34,259,369 | 132,291·0 (128,878·3–138,320·0) | 20,852·1 (18,088·89–23,629·1) |
| 40–49 years | 29,854,837 | 196,781·1 (195,074·2–203,222·8) | 41,847·1 (39,778·5–44,560·0) |
| 50–59 years | 24,234,960 | 235,022·3 (234,898·4–241,530·5) | 68,241·6 (67,241–71,132·8) |
| 60–69 years | 17,295,908 | 137,469·8 (136,689·35–144,380·3) | 62,659·0 (60,814·0–65,566·6) |
| 70–79 years | 9,416,919 | 72,460·7 (72,369·4–77,411·4) | 44,431·1 (42,293·2–46,784) |
| 80–89 years | 3,761,197 | 19,175·0 (19,069·3–22,225·7) | 16,469·1 (14,573·5–18,171·0) |
| ≥ 90 years | 856,211 | 3,451·1 (3,461·2–3,691·7) | 3,731·1 (3,100·3–4,235·5) |
| ≥ 20 years | 153,748,413 | 841,137·68 (838,011·6–880,129·4) | 264,138·4 (257,949·5–282,663·8) |
| Individuals boosted-vaccinatedc | |||
| 20–29 years | 34,069,012 | 6,641·0 (6,107·3–7,404·9) | 802·3 (−121·2 to 2,249·9) |
| 30–39 years | 34,259,369 | 12,951·7 (8,625·9–19,948·3) | 2,116·3 (−187·7 to 2,591·7) |
| 40–49 years | 29,854,837 | 15,155·8 (9,141·4–18,285·1) | 3,744·6 (745·32–4,144·14) |
| 50–59 years | 24,234,960 | 19,138·1 (12,657·7–23,588·6) | 6,456·3 (2,463·6–10,416·0) |
| 60–69 years | 17,295,908 | 7,486·3 (7,334·6–7,818·1) | 2,490·9 (1,800·4–3,181·3) |
| 70–79 years | 9,416,919 | 1,834·7 (1,809·6–2,014·5) | 755·1 (380·9–1,129·28) |
| 80–89 years | 3,761,197 | 12,516·3 (6,591·8–16,728·5) | 8,777·8 (5,335·7–9,635·5) |
| ≥ 90 years | 856,211 | 2,062·8 (1,344·3–7,372·8) | 2,781·2 (1,860·5–2,928·3) |
| ≥ 20 years | 153,748,413 | 77,787·0 (51,612·8–97,161·27) | 27,924·89 (13,717·00–39,558·95) |
Data are the number of outcomes averted with 95% CI presented in parentheses.
a
Individuals at least partially vaccinated were those who received one or more doses of any two-dose COVID-19 vaccine.
b
Individuals who were fully vaccinated were those who completed the vaccine schedule.
c
Individuals who received the booster dose (i.e., 3rd dose).