Bashir, A.; Abdullah, M. S.; Momin, N. R.; Chong, P. L.; Asli, R.; Mani, B. I.; Chong, V. H. Prevalence of Primary Bacterial Co-Infections Among Patients With COVID-19 in Brunei Darussalam: Prevalence of Primary Bacterial Co-Infection in COVID-19. Western Pac Surveill Response J 2021, 12, 6.