Scientists think that whatever is causing the neurological symptoms suffered by people like Thornton and Wood, it's likely a result of the interaction of the human immune system and the brain more than the virus itself and the brain.īut undoing the damage is a more complicated question, and could leave a rash of mental illnesses and chronic neurological issues in its wake. Or, it could be that the virus sets off an eerie conversion of the antibodies meant to fight it into 'autoantibodies' that incorrectly learn that healthy tissues like the brain are the invaders, and start attacking them. Some go several months without recovering their senses of smell.īut the virus didn't seem to veer off path to other regions of the brain.Īnother theory suggests that a sort of viral debris - infectious proteins detached from a dying viral particle - could cross the blood-brain-barrier and, even if it can't fully infect brain cells, wreak havoc. The process likely underlies the loss of smell suffered by up to 86 percent of people with otherwise mild infections. Researchers in Berlin were among the first to trace the virus's route from the mucosa of the nasal passageway to the olfactory bulbs - neuron receivers of scent information that is then sent deeper into the brain for processing - and even to the brain stem.
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The writing is on the wall, but what exactly is happening is unclear - and it could take years of research to work out why the virus continues to haunt the brains of survivors.
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'I got my voice back but it broke my mouth,' Thornton told Scientific American.Īs President Joe Biden has spoken to many times, stress can trigger a stutter in a person who has one, but the underlying cause of the speech disorder is a more complicated series of neurological issues.įor months, it's been undeniable that coronavirus attacks the brain, with infected people becoming stroke-prone, or developing encephalitis.Īnd then there are the case reports of psychosis, or surveys of 'long-covid' sufferers like one given to 153 UK patients - a third of them reported neurological symptoms such as brain swelling, 'dementia-like' memory problems and 'altered mental status.' While sick with coronavirus in August, he had fairly typical, moderate symptoms: a headache, fatigue, chest pain, shortness of breath, a sore throat that made him lose his voice.īut even once he was on the road to recovery, something was off.
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'I realized that some of the words didn’t feel right in my mouth, you know?' said Patrick Thornton, a math teacher in Houston Texas.
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COVID-19 has left scores of survivors with bizarre had debilitating neurological effects that range from mani to neurological episodes, a new report reveals.Ī 40-year-old teacher who has spent his life communicating with a classroom of students found himself with a stutter for the first time in his life.