Yes: It is possible. There are 3 types of flu - A, B, and C. Most infections are of type A. Each type has different strains that mutate all the time. That is why you need a new flu shot every year. So, yes, you could be exposed to two different strains and/or two different types of flu within 2 weeks. Developing immunity after surviving one strain doesn't always protect you from another.
Answered 11/27/2014
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