We get all your frequently asked questions regarding the flu vaccine answered by Abbott Laboratories. Flu vaccine Seasonal changes are upon us, and so is flu season. Now, more than ever we should protect ourselves and our families against flu. What is flu? Flu is easily confused with a cold. Flu is a viral infection that causes serious respiratory tract infections. The symptoms are like cold symptoms, except that the onset is very sudden. One morning you may be well, and that afternoon you’re running a high fever and feel really ill3. How is it spread? Via droplets when…