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Volume 22, Number 5—May 2016
Dispatch

Clinical, Virologic, and Epidemiologic Characteristics of Dengue Outbreak, Dar es Salaam, Tanzania, 2014

Francesco Vairo1Comments to Author , Leonard E.G. Mboera1, Pasquale De Nardo, Ndekya M. Oriyo, Silvia Meschi, Susan F. Rumisha, Francesca Colavita, Athanas Mhina, Fabrizio Carletti, Elibariki Mwakapeje, Maria Rosaria Capobianchi, Concetta Castilletti, Antonino Di Caro, Emanuele Nicastri, Mwelecele N. Malecela2, and Giuseppe Ippolito2
Author affiliations: National Institute for Infectious Diseases L. Spallanzani, Rome, Italy (F. Vairo, P. De Nardo, S. Meschi, F. Colavita, F. Carletti, M.R. Capobianchi, C. Castilletti, A. Di Caro, E. Nicastri, G. Ippolito); National Institute for Medical Research, Dar es Salaam, Tanzania (L.E.G. Mboera, N.M. Oriyo, S.F. Rumisha, A. Mhina, M.N. Malecela); Ministry of Health and Social Welfare, Dar es Salaam (E. Mwakapeje)

Main Article

Table

Characteristics of 483 patients tested for DENV infection during dengue outbreak, Dar es Salaam, Tanzania, 2014*

Characteristic
 Current dengue infection, n = 101
 No dengue, n = 382
 Total, n = 483
 p value
Sex 0.067†
M 65 (64.4) 207 (54.2) 272 (56.3) NA
F 36 (35.6) 175 (45.8) 208 (43.7) NA
Median age, y (IQR)
 28 (21–37)
 24 (13–35)
 25 (14–36)
 <0.001‡
Age, y, n = 481 <0.001†
<15 12 (11.9) 117 (30.8) 129 (26.8) NA
>15
 89 (88.1)
 263 (69.2)
 352 (73.2)
 NA
District 0.007†
Temeke 18 (17.8) 123 (32.2) 141 (29.2) NA
Ilala 34 (33.7) 128 (33.5) 162 (33.5) NA
Kinondoni
 49 (48.5)
 131 (34.3)
 180 (37.3)
 NA
Employed, n = 455
 66 (69.5)
 169 (46.9)
 235 (51.7)
 <0.001†
Water storage, n = 476 43 (43.9) 185 (48.9) 228 (47.9) 0.371†
Resting water, n = 481
 48 (48.5)
 179 (46.9)
 227 (47.2)
 0.773†
Persons in household, n = 474 0.284†
1–3 33 (33.3) 118 (31.5) 151 (31.9) NA
4–6 41 (41.4) 185 (49.3) 226 (47.7) NA
>7
 25 (19.2)
 72 (19.2)
 97 (20.5)
 NA
Bed net use, n = 479 75 (75) 313 (82.6) 388 (81) 0.085†
Insecticide spraying in home, n = 479 20 (20) 87 (21) 107 (22.3) 0.528†

*Values are no. (%) except as indicated. DENV, dengue virus; NA, not applicable; IQR, interquartile range.
†By χ2 test.
‡By Wilcoxon rank-sum test.

Main Article

1These first authors contributed equally to this article.

2These senior authors contributed equally to this article.

Page created: April 13, 2016
Page updated: April 13, 2016
Page reviewed: April 13, 2016
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