Yee-Chun Chen*, Li-Min Huang*, Chang-Chuan Chan*, Chan-Ping Su*, Shan-Chwen Chang*
, Ying-Ying Chang*, Mei-Ling Chen*, Chien-Ching Hung*, Wen-Jone Chen*, Fang-Yue Lin*, Yuan-Teh Lee*, and the SARS Research Group of National Taiwan University College of Medicine and National Taiwan University Hospital
Figure 4. Contact history and temporal relationships among contacts according to the date of fever for 19 cases of severe acute respiratory syndrome (SARS) during the first two clusters of SARS at the emergency room of National Taiwan University Hospital. On April 27, fever and pneumonia developed in the index patient (patient 1) of the first cluster. The second cluster from an unknown source was identified on May 8. P, patients. Unlabeled numbers indicate family members or nursing aids. Location in the emergency room is shown in gray bars and in general wards by black bars. Numbers within the gray bar represent bed numbers in the observation unit of the ER. The dates of onset of fever are shown in arrows.