Huynh, N. N. Y.; Nguyen, D. D.; Ta, N. H.; Nguyen, M. T.; Nguyen, T. V.; Dang, H. T.; Vo, T. K. C.; Le, N. T. COVID-19 Clusters at Workplaces and Its Transmission into Communities in Vietnam: A Novel Emerging Occupational Risk Factor at Work Due to Coronavirus Infection. Asian Pac J Envi & Cancer 2020, 3, 27-33.