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Also, approximately 68.2% of the world's population has been fully vaccinated against this disease. In early 2021, the first vaccines were introduced to stop the pandemic. As of November 2022, 630.3 million people have been diagnosed with COVID-19 and 6.58 million deaths worldwide, according to WHO figures. This virus is known to cause widespread lung infection and hypoxia.
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Following that situation in 2020, the World Health Organization had to declare a global health emergency. A virus that was much more contagious than SARS Covid-1 and spread to different parts of the world in a short time. In December 2019, the SARS Covid-2 virus was introduced to the world. Herein, we have provided a comprehensive review of documents reporting neurological side effects of COVID-19 vaccines in international databases from 2020 to 2022 and discussed neurological disorders possibly caused by vaccination. These effects are often acute and transient, but they can be severe and even fatal in a few cases. The most important and common complications are cerebrovascular disorders including cerebral venous sinus thrombosis, transient ischemic attack, intracerebral hemorrhage, ischemic stroke, and demyelinating disorders including transverse myelitis, first manifestation of MS, and neuromyelitis optica. According to these reports, vaccination can have an adverse event, especially on nervous system. At the same time, there are many reports of side effects after getting a COVID-19 vaccine.
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Following the COVID-19 virus epidemic, extensive, coordinated international research has led to the rapid development of effective vaccines. Although vaccines are now considered the best way to achieve collective safety and control mortality, due to the critical situation, these vaccines have been issued the emergency use licenses and some of their potential subsequence side effects have been overlooked.
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