Is it time for your flu shot? What to know about effectiveness and how long it lasts​Is it time for your flu shot? What to know about effectiveness and how long it lasts 

 Experts blame misinformation and “vaccine fatigue” for declining demand for flu shots. Here’s what you should know about flu vaccines this year.  ​​Experts blame misinformation and “vaccine fatigue” for declining demand for flu shots. Here’s what you should know about flu vaccines this year.