controlled study 2 genetic epidemiology 2 human 2 prevalence Actinobacteria (class) 1 Article 1 Bacteria (microorganisms) 1 COVID-19 1 Crohn disease 1 DNA determination 1 Malaysia 1 Mycobacterium 1 Mycobacterium tuberculosis 1 adult 1 age 1 alcohol consumption 1 article 1 assessment of humans 1 bacterial DNA 1 bacterium identification 1 bacterium isolate 1 body mass 1 cardiometabolic risk 1 cohort analysis 1 coronavirus disease 2019 1 disease severity 1 female 1 gamma interferon 1 gene frequency 1 gene interaction 1