People may want to pass the word around that the flu shot being given this year is not effective against the dominant flu strain that is wreaking havoc with people right now.
There was an error in making the vaccine in which the expected flu strain H3N2 mutated during the making of the vaccine, causing the antigens used in the vaccine to be ineffective against that flu strain.
People need to take full precautions against getting the flu, even if they have had the vaccine.
Wash your hands a lot, and use antibacterial hand cleaners like Purell hand sanitizer.
If you know or have a family member who is sick, use a mask and wear rubber gloves. If they are really bad off, seek medical attention for them.
There are some BS articles out there claiming that the vaccine is giving people the flu. They are written by people who are against the use of any vaccines, ignore them.
It is simply a fact that people thought they were protected, and did not bother with any other precautions.
Vaccines are generally very safe, but as it always is in the case of flu vaccines, they are never 100% effective, since they are always based on a best guess as to which strain of the flu will be dominant any given year.
This flu strain is a beast, so do what you can to stay safe.