Is natural immunity better than a flu vaccine?

When a flu virus enters your body, the immune system fights the infection by producing a robust antibody response that can spring into action if the same strain of the virus returns. That protection can in some cases last a lifetime. “The evidence we have is that people who were infected back in the thirties still have immunity to those viruses,” said Dr. Alicia Fry, a medical epidemiologist at the Centers for Disease Control and Prevention.

Read more here: Is natural immunity better than a flu vaccine? – The Globe and Mail

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