more dangerous for humans? Does Covid-19 have more varieties/strains?
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Six species of human coronaviruses are known, with one species subdivided into two different strains, making seven strains of human coronaviruses altogether.
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Six species of human coronaviruses are known, with one species subdivided into two different strains, making seven strains of human coronaviruses altogether
When a virus replicates or makes copies of itself, it sometimes changes a little bit, which is normal for a virus. These changes are called “mutations”. A virus with one or more new mutations is referred to as a “variant” of the original virus.
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