TY - JOUR AU - Li, Yu AU - Liu, Jianhua AU - Yang, Zhongcheng AU - Yu, Jianxing AU - Xu, Chengzhong AU - Zhu, Aiqin AU - Zhang, Hao AU - Yang, Xiaokun AU - Zhao, Xin AU - Ren, Minrui AU - Li, Zhili AU - Cui, Jinzhao AU - Zhao, Hongting AU - Ren, Xiang AU - Sun, Chengxi AU - Cheng, Ying AU - Chen, Qiulan AU - Chang, Zhaorui AU - Sun, Junling AU - Rodewald, Lance AU - Wang, Liping AU - Feng, Luzhao AU - Gao, George AU - Feng, Zijian AU - Li, Zhongjie T1 - Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 to Close Contacts, China, January–February 2020 T2 - Emerging Infectious Disease journal PY - 2021 VL - 27 IS - 9 SP - 2288 SN - 1080-6059 AB - We estimated the symptomatic, PCR-confirmed secondary attack rate (SAR) for 2,382 close contacts of 476 symptomatic persons with coronavirus disease in Yichang, Hubei Province, China, identified during January 23–February 25, 2020. The SAR among all close contacts was 6.5%; among close contacts who lived with an index case-patient, the SAR was 10.8%; among close-contact spouses of index case-patients, the SAR was 15.9%. The SAR varied by close contact age, from 3.0% for those <18 years of age to 12.5% for those >60 years of age. Multilevel logistic regression showed that factors significantly associated with increased SAR were living together, being a spouse, and being >60 years of age. Multilevel regression did not support SAR differing significantly by whether the most recent contact occurred before or after the index case-patient’s onset of illness (p = 0.66). The relatively high SAR for coronavirus disease suggests relatively high virus transmissibility. DO - 10.3201/eid2709.202035 UR - https://wwwnc.cdc.gov/eid/article/27/9/20-2035_article ER - End of Reference