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The covid virus can have a serious neurological impact, whether it’s brain fog, a headache, a stroke or Long Covid itself. Tens of millions of us around the world are already suffering from Long Covid. Now scientists are beginning to get a picture of how it happens and what’s going on. Let’s explore why it makes more sense than ever to protect the people who come onto your premises from covid.
Covid in your brain
The first thing to know is that covid can get into the brain - and when it gets there it infects the neurons. While nobody yet knows how serious the long term effects can be, and ‘notable damage’ doesn’t seem to be happening, it’s obviously concerning. And it highlights how little we know about the impact of other viruses on the brain.
What we know about covid’s neurological effects
Covid is commonly associated with neurological problems. Some studies show as many as one in three of us with covid will be diagnosed with a neurological or psychiatric problem afterwards. It could mean you lose your sense of smell for a long time or permanently, suffer constant weakness and fatigue, headaches, mood swings, depression, meningitis and memory loss. Some people have strokes or seizures. And you remain more likely than average to suffer a serious infection in the two years after having the virus.
One large study showed almost 13% of people developed ‘serious’ neurological problems, including encephalopathy, and people who have them are more likely to need intensive care, die, or have long term health issues. Interestingly the symptoms can affect you even if you only had a mild case.
These results have been borne out in many other pieces of research. As one scientist says,
“For people that are more seriously impacted in terms of neurologic conditions, their likelihood of surviving is lower and their likelihood of disability is very high.”
How does covid affect the brain?
Covid can affect blood vessels and blood flow, indirectly damaging the brain. So can the immune system problems seen by people who have had severe covid. A bad bout of covid can also come with a higher risk of inflammation, where your body’s antibodies attack your own tissues while leaving the virus alone. In this case, while the virus doesn’t directly harm the brain, our immune system’s response to it can.
There’s a serious implication to all this: the brain isn’t almost entirely cut off from the rest of the body in the way scientists thought, kept safe behind the blood-brain barrier. The brain isn’t as secure as we’d like to believe.
Covid has been found alive, well and capable of replicating, inside the brains of people who died of the virus. But oddly, it doesn’t seem to cause obvious problems once it’s in there. While this does show how a virus can stay in the body, at low levels, for longer than anyone thought, we still don’t know exactly how being seriously ill damages the brain, nor do we really know what viruses do once they get into the brain.
Better safe than sorry
We know more than we did… but we still don’t know anywhere near enough about the damage viruses like covid can do in the long term, which means it’s unwise to treat covid infection casually.
If you run a business or another sort of place where the public gathers indoors, please do what you can to keep people of every age safe from covid. If you’d like to explore how our UVC technology kills covid and masses of other health threats in no time, cleanly and safely, get in touch for a sensible discussion with the experts.