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Smallpox and its control in Canada | CMAJ https://t.co/8CQcXWVxpm
Smallpox and its control in Canada | CMAJ https://t.co/8CQcXWVxpm
How was small pox eradicated? Read. I was among the last generations to receive the small pox vaccine, still have the lesion on my arm. Vaccines work. Now fcuk off. https://t.co/2zZnwHz4zd