Wow. As Twitchy reported, many are wearing masks as a precaution as the flu spreads. And many others are trying to get the flu vaccine now in order to protect themselves. However, that is becoming increasingly difficult to do.

Celebrity Nicky Hilton weighs in.

?Just got my flu shot ? My doctor said supplies are running low so hurry up! #bettersafethansorry

Easier said than done now, Nicky. Many places are running out, or have already run out, of the vaccine.

Why she won’t tell where she is going to get a flu shot? To avoid lines like this:

It's a long wait to get the flu shot! Lets hope this line goes by quickly!

Line for the flu shot is thiiick!

Quite a line for flu shots this morning

Expect the long waits to continue:

Indeed. Stay healthy, everyone! Twitter can help; Twitter users are tweeting information to let others know where the flu shot is still available.

The power of Twitter!