CDC conducts studies each year to determine how well the flu vaccine protects against flu illness. <span>While vaccine effectiveness can vary,</span> recent studies show vaccine reduces the risk of flu illness by about 50% to 60% among the overall population during seasons when most circulating flu viruses are like the vaccine viruses.
It would be c because 1. she wasn't having a conversation with anyone when she started to behave differently. Also it couldn't be possible to have a switch and just change bodies in a matter of days or even minuetes
