Here’s the fact of the flu. If you never expose yourself to the newest type of influenza virus, once you’re being infected by the influenza virus, your body will automatically produce the require antibodies to against the influenza virus. Which means, you won’t be infected by same types of virus in the future, or the chances of getting infected is very low…
Many people believe that flu can be transmitted through the air, and they’re right about it. Therefore, you should avoid with those who having flu, if you have a weaker immune system against flu.
The most important things to battle against flu is to drink plenty of water, do more exercises, eat more vegetables/fruits and having quality sleep hours!
Note: Picture thanks to eckee.