Volume 24, Number 10—October 2018
CME ACTIVITY - Research
Influenza Transmission Dynamics in Urban Households, Managua, Nicaragua, 2012–2014
Aubree Gordon
, Tim K. Tsang, Benjamin J. Cowling, Guillermina Kuan, Sergio Ojeda, Nery Sanchez, Lionel Gresh, Roger Lopez, Angel Balmaseda, and Eva Harris
, Tim K. Tsang, Benjamin J. Cowling, Guillermina Kuan, Sergio Ojeda, Nery Sanchez, Lionel Gresh, Roger Lopez, Angel Balmaseda, and Eva Harris
Table 2
Factors affecting influenza transmission in urban households, Managua, Nicaragua, August 2012–November 2014
| Characteristics | Risk ratio (95% CI) |
|---|---|
| Influenza type | |
| A(H3N2) | Referent |
| A(H1N1) | 1.18 (0.5–2.42) |
| B | 0.96 (0.4–2.15) |
| Age of household contact, y | |
| >18 | Referent |
| <18 for influenza A | 2.26 (1.38–3.88) |
| <18 for influenza B | 4.47 (2.05–11.02) |
| Prior vaccination of household contact | |
| No | Referent |
| Yes | 0.46 (0.11–1.32) |
| Age of index patient, y | |
| <5 | Referent |
| >5 | 1.55 (0.98–2.45) |
| Oseltamivir treatment of index case | |
| No | Referent |
| Yes | 0.69 (0.42–1.12) |
| No. household contacts | |
| 1–3 | Referent |
| 4–5 | 0.60 (0.30–1.10) |
| >5 | 0.69 (0.37–1.18) |
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