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Sars-Cov virus can also spread in the central nervous system

Depressed mood or anxiety in people with Sars Cov Virus could possibly be a sign that the infection is affecting the central nervous system. This is according to an international study conducted by a researcher from the University of Cincinnati College of Medicine. According to the study, these two psychological symptoms were most closely linked to a loss of smell and taste and not to the serious indicators of the novel coronavirus such as shortness of breath, cough or fever.

Neurological damage from Sars-Cov virus

Representation of coronaviruses in the central nervous system invading through nostrils

The usual symptoms of COVID-19 are respiratory problems, cough, or high fever. So far, however, these have not been related to the psychological state. Neither of these symptoms, which indicated morbidity or mortality, were associated with the depression or anxiety in these patients. The only element of Sars-Cov Virus that had to do with depressed mood and anxiety was that Loss of smell in COVID-19. In addition, it was an unexpected and shocking result. For this reason, the research team carried out a prospective cross-sectional telephone study. In this, the scientists examined the characteristics and symptoms of 114 patients. Doctors diagnosed COVID-19 in all test subjects over a period of six weeks in Aarau Cantonal Hospital, Switzerland. The researchers also assessed the severity of the loss of smell or taste, nasal congestion, excessive mucus production, fever, cough and shortness of breath.

Medical examination shortness of breath coronavirus infection symptoms

At the time of entry into the study, 47.4% reported being depressed for at least several days per week. 21.1% of them had depressive thoughts almost every day. In terms of severity, 44.7% of participants said they expressed mild anxiety, while 10.5% experienced severe anxiety. This amazingly has shown that perhaps the least worrying symptoms of COVID-19 could be causing the greatest levels of psychological distress. So the results may suggest a little more about the effects of the disease. Therefore, the team believes that psychological distress in the form of depressed mood or anxiety reflects the penetration of Sars-Cov virus into the central nervous system.

New evidence of the disease

loss of smell due to coronavirus

Researchers have long believed that the nostrils could be the primary way coronaviruses enter the central nervous system. However, there was evidence of the severe acute respiratory syndrome. This was a viral disease that emerged in China in November 2002 and spread to 29 countries through international travel. Studies with animal models of the Sars-Cov virus have shown that the nose or the way for smells to communicate with the brain was also a gateway to the central nervous system and to the infection of the brain. This may indicate that the virus is infecting olfactory neurons, decreasing the sense of smell, and then using the nose to enter the central nervous system.

covid 19 medical examination of respiratory diseases in sars cov virus

The researchers describe in the study rare but severe central nervous system symptoms due to COVID-19. These would be seizures or an altered state of mind, for example. Depressed moods and anxiety states, however, can be the much more common, but milder symptom of the central nervous system when infected by coronavirus. The virus may have penetrated the central nervous system, as researchers suggest based on the prevalence of olfactory-induced depressed mood and anxiety. This really opens doors for future research to find out how coronaviruses can interact with the central nervous system.