TY - JOUR AU - Fung, Isaac Chun-Hai AU - Chan, Benedict S.B. T1 - People Count: Contact-Tracing Apps and Public Health T2 - Emerging Infectious Disease journal PY - 2021 VL - 27 IS - 9 SP - 2509 SN - 1080-6059 AB - KW - contact tracing KW - coronavirus disease KW - COVID-19 KW - privacy DO - 10.3201/eid2709.210754 UR - https://wwwnc.cdc.gov/eid/article/27/9/21-0754_article ER - End of Reference