Explain the challenges scientists face with mutating viruses and how they are trying to solve the *answer*scientists are creating vaccinations that prevent people from getting bird flu. if the virus mutates, a new vaccine needs to be made. the vaccine needs to be tested, which can be dangerous. it also takes a long time for scientists to know whether the vaccine works.

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Which side effect should be assesed by the nurse when administering aminophylline?

Winston's baseball team had the bases loaded in the last inning when his friend freddie watched three straight pitches go by without swinging and was called out on strikes out to end the game. how can winston demonstrate responsible behavior in this situation? a. ask the coach sarcastically, in front of the team, if he gave freddie the take sign b. confront freddie and let him know that the team would have won if he could hit c. ignore freddie both after the game and the next day at school d. tell freddie that no one is perfect and to keep his confidence up