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Loss of Smell, Taste in Covid-19: A Common Coronavirus Symptom; Prevention Tips

 Why do people experience loss of smell and taste in coronavirus?  It has been commonly found that some infected persons with novel coronavirus experience a temporary loss of smell. Also known as anosmia , loss of smell is a neurological symptom and an early indicator of COVID-19.  Harvard Medical School researchers believe that the olfactory cell types in the upper nasal cavity are highly vulnerable to infection by the coronavirus (also known as SARS-CoV-2).  Surprisingly and luckily, sensory neurons that are responsible for the transmission of the sense of smell to the brain are not affected. Researchers noted that the sense of smell in Covid-19 patients was different from other respiratory viruses. Coronavirus causes an over-reaction of the immune system by affecting the nervous system. The loss of smell loss is not typical of coronavirus alone. It happens in sinus infection, common cold, Alzheimer’s and Parkinson’s diseases. It is still a mystery as there is no conclusive evidence