Four years have passed and the mysteries of covid are still unanswered

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Almost every aspect of the novel coronavirus remained unknown when the World Health Organization declared Covid-19 a global pandemic in March 2020. Some of the questions that remained unanswered were how fast it was spreading, how sick people would get from it, and if getting sick from one bout would protect you from getting sick again.

Over the last four years, researchers have figured out a number of the most significant mysteries surrounding Covid. More information is now available about how it spreads (no, staying six feet apart won’t guarantee protection), why children don’t seem to get sicker from it than adults do, and the causes of the odd symptoms it can cause, like brain fog and “Covid toe.”. Let’s review the things we now know.

Are superdodgers real, and why do people’s experiences with Covid differ so much from one another?

Most Americans have experienced COVID-19 at least once by now. Although the majority of those infected experienced flu-like symptoms, a small percentage also experienced severe respiratory problems that required hospitalization, and still others showed no symptoms at all.

The amount of viruses we are exposed to may help to explain some of this, but our bodies also have a significant impact. Due to already compromised immune systems, people who are older or already have health issues typically experience more severe symptoms. Sometimes the virus can be eliminated by the body so quickly that a person never tests positive, or it can be fought off before it multiplies enough to cause symptoms. Additionally, there is compelling evidence that vaccinations lessen the severity of illness.

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