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Because flu viruses evolve so quickly, last year's vaccine may not protect you from this year's viruses. New flu vaccines are released every year to keep up with rapidly adapting flu viruses.
when they hit it at too shallow of an angle it causes them to curve away
Royal colonies: Another term for provincial colonies; colonies that were under the direct control of the King, who usually appointed a Royal Governor. proprietary colonies: Owned by a person (always a white male) or family, who could make laws and appoint officials as he or they pleased.
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a maybe correct me if im wrong