Volume 22, Number 8—August 2016
Research
Middle East Respiratory Syndrome Coronavirus Transmission in Extended Family, Saudi Arabia, 2014
Table 3
Exposures to MERS-CoV index patients by household adult members with and without secondary MERS-CoV infection living in 4 households, Al-Qouz, Saudi Arabia, 2014*
| Proximity to index patient | |||
|---|---|---|---|
| Within 1 m during time he was sick at home | 8 (89) | 12 (57) | 4.0 (0.6–27.8) |
| Within 1 m every day | 7 (78) | 9 (43) | 3.1 (0.8–12.4) |
| Within 1 m on day preceding hospitalization | 7 (78) | 11 (52) | 2.3 (0.6–9.3) |
| Visited index patient in the hospital | 6 (67) | 10 (48) | 1.8 (0.5–5.7) |
*Bold indicates statistical significance. This household transmission analysis included relatives >14 y of age living in the 4 households of the index patients, defined as the first patient in the household who received a MERS-CoV diagnosis by rRT-PCR. Secondary transmission is defined as onset of illness or testing positive for MERS-CoV after the household’s index patient had received a diagnosis. Two MERS-CoV–infected household members were excluded from analysis because they had illness onsets before the presumed household index patient’s illness and were subsequently reported to have MERS-CoV antibodies. MERS-CoV, Middle East respiratory syndrome coronavirus; rRT-PCR, real-time reverse transcription PCR.