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Volume 27, Number 9—September 2021
Research

Perinatal Outcomes of Asynchronous Influenza Vaccination, Ceará, Brazil, 2013–2018

José Q. Filho, Francisco S. Junior, Thaisy B.R. Lima, Vânia A.F. Viana, Jaqueline S.V. Burgoa, Alberto M. Soares, Álvaro M. Leite, Simone A. Herron, Hunter L. Newland, Kunaal S. Sarnaik, Gabriel F. Hanson, Jason A. Papin, Sean R. MooreComments to Author , and Aldo A.M. LimaComments to Author 
Author affiliations: Federal University of Ceará, Fortaleza, Brazil (J.Q. Filho, F.S. Junior, A.M. Soares, Á.M. Leite, A.A.M. Lima); Ceará State Health Secretariat, Fortaleza (T.B.R. Lima); Central Public Health Laboratory of Ceará, Fortaleza (V.A.F. Viana, J.S.V. Burgoa); University of Virginia School of Medicine, Charlottesville, Virginia, USA (S.A. Herron, H.L Newland, K.S. Sarnaik, G.F. Hanson, J.A. Papin, S.R. Moore)

Main Article

Table 1

Prevalence of severe acute respiratory infection, Ceará, Brazil, 2013–2018*

Variable
 Year
2013
 2014
 2015
 2016
 2017
 2018
Sex†
M 141 (43) 68 (39) 115 (40) 272 (50) 150 (53) 854 (51)
F
 189 (57)
 105 (61)
 174 (60)
 274 (50)
 135 (47)
 820 (49)
Age, y (range)‡
 26.02 (0–96)
 26.54 (0–97)
 23.11 (0–94)
 16.85 (0–100)
 1.58 (0–94)
 5.26 (0–102)
Age groups at high risk†
<6 mo 47 (14) 46 (27) 76 (26) 52 (10) 88 (31) 235 (14)
6 mo to 5 y 43 (13) 16 (9) 23 (8) 174 (32) 84 (29) 594 (35)
>60 y
 53 (16)
 27 (16)
 30 (10)
 102 (19)
 21 (7)
 247 (15)
Pregnant women†
 38 (12)
 13 (8)
 32 (11)
 17 (3)
 10 (4)
 35 (2)
SARI cases, total† 330 (100) 173 (100) 289 (100) 546 (100) 285 (100) 1,674 (100)
Influenza 56 (17) 24 (14) 58 (20) 107 (20) 36 (13) 451 (27)
Noninfluenza 61 (18) 22 (13) 36 (12) 64 (12) 101 (35) 21 (1)
Unspecified or unknown
 213 (65)
 127 (73)
 198 (69)
 375 (69)
 148 (52)
 1,202 (72)
Influenza subtypes§ 56 (100) 24 (100) 58 (100) 107 (100) 35 (100) 450 (100)
Seasonal A(H1N1) 30 (54) 18 (75) 1 (2) 89 (83) 2 (6) 309 (69)
Other seasonal A(H1) 0 0 45 (78) 0 1 (3) 0
Seasonal A(H3) 2 (4) 0 0 0 25 (71) 23 (5)
A, unknown subtype 22 (39) 1 (4) 4 (7) 16 (15) 0 14 (3)
B
 2 (4)
 5 (21)
 8 (14)
 2 (2)
 7 (20)
 104 (23)
SARI deaths¶ 13 (100) 2 (100) 1 (100) 40 (100) 24 (100) 159 (100)
Influenza 9 (69) 1 (50) 0 17 (43) 5 (21) 75 (47)
Death rate of laboratory-certified influenza# 16.1 4.2 0 15.9 20.8 16.6
Other viruses/etiologic agents or unspecified
 4 (31)
 1 (50)
 1(100)
 23 (58)
 19 (79)
 84 (53)
Influenza vaccination coverage** 88 84 83 91 90 NA

*Data from Notifiable Diseases Information System (19). Values are no. (%), except as indicated. NA, not available; SARI, severe acute respiratory infection. †Of total SARI patients. ‡Values are median age (range). §Of total persons with identified influenza subtype. ¶Of total SARI deaths. #Of total laboratory-certified influenza deaths. **Among persons at risk (estimated at ≈2.6 million). Population at risk comprises children <6 mo of age; children 6 mo to <5 y of age; persons >60 years of age; pregnant women; postpartum women (<45 d after delivery); healthcare workers; teachers; indigenous persons; persons who have chronic noncommunicable diseases and other immunocompromising conditions; persons 12–21 y of age experiencing poverty; prisoners; prison system officials; and military police, civilians, firefighters, and armed forces.

Main Article

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Page updated: August 19, 2021
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