I do not include those who are unable to have access to the vaccine, i.e. the poorest countries or valid medical reasons meaning they cannot have them [too young etc] 1- They are providing the breeding ground for further mutations of the virus to a...
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1- They are providing the breeding ground for further mutations of the virus to a possibly more virulent and dangerous strain that may well affect the youngest.
2-They are a danger to the efficacy of the vaccine itself because it only takes one new mutated strain to kick the deadly chaos off again.