Figure 2. Timeline of exposures, symptom onset, and diagnosis of Middle East respiratory syndrome coronavirus (MERS-CoV) among secondary case-patients in a healthcare-associated cluster (cluster III), Abu Dhabi, 2014. Colored boxes indicate key dates for each case-patient: green boxes indicate date of interaction between source case (patient III-A) and healthcare providers; pink boxes indicate date of symptom onset; blue boxes indicate date of MERS-CoV diagnosis. For 5 case-patients who reported no symptoms, symptom onset is not listed; data exclude a secondary case with probable exposure (patient III-Q). SOB, shortness of breath; ICU, intensive care unit; PPE, personal protective equipment; duration, duration of exposure; ED, emergency department.