Why doesn't COVID-19 taste sweet?

COVID-19 can't taste the sweetness, because the taste organs are attacked by novel coronavirus. COVID-19 has no taste in his mouth after infection, mainly because novel coronavirus invaded his taste organs. After COVID-19's infection, the patient's sense of taste may be reduced or lost, mainly because some genes in the body are highly expressed in the tongue and oral mucosa, which leads to novel coronavirus invading cells and ultimately affecting the sense of taste, resulting in the phenomenon of no sense of taste in the oral cavity.