COVID-19: Coronavirus disease-19 SARS-CoV-2: Severe acute respiratory syndrome coronavirus-2 OD: Olfactory dysfunction CNS: Central nervous system BBB: Blood-brain barrier ACE2: Angiotensin-converting enzyme 2 TMPRSS2: Transmembrane serine protease 2 OM: Olfactory mucosa OE: Olfactory epithelium RE: Respiratory epithelium LP: Lamina propria ORN: Olfactory receptor neuron OR: Olfactory receptor OB: Olfactory bulb SC: Sustentacular cell MVC: Microvilli cell BGDC: Bowman's gland ductal cell HBC: Horizontal basal cell GBC: Globose basal cell GPCR: G protein-coupled receptor IFN: Interferon ISG: IFN-stimulated genes DPI: Days post-infection Scrams: Single-cell RNA-sequencing BCEC: Brain capillary endothelial-like cell OMP: Olfactory marker protein OE-MSC: Olfactory ecto-mesenchymal stem cells VNO: Vomeronasal Organ OBX: Olfactory bulbectomy NSC: Neural stem cell IF: Immunofluorescence ISH: In situ hybridization HCC: Histocytochemistry This work was supported with the University of Macau Research Committee funds MYRG #2017-00124-FHS and #2020-00140-FHS, Macau Science and Technology Development Fund (FDCT) #0112-2018-A3 and #0002-2020-AKP, and FDCT-National Natural Science Foundation of China joint grant #0008-2019-AFJ to R.X

How accurate are modern monitors at separating smoking from steam or deodorant
Ideal for those who enjoy a cigarette with a detectable scent and distinguishable presence in the air
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For individuals with existing medical conditions, vaping periodontal disease may exacerbate overall health risks, making dental management an important part of holistic healthcare