Flu (Influenza)

Contagious respiratory illness caused by influenza viruses infecting nose, throat, and sometimes lungs

  • Fever
  • Cough
  • Sore throat
  • Runny/stuffy nose
  • Muscle/body ache
  • Headache
  • Fatigue
Q & A

Why is a flu shot needed every year?

  • Immunity declines over time.
  • Flu viruses constantly evolve, so a new vaccine is administered every year.

Can I still get sick with the  flu even after vaccination?

  • It is possible to be exposed to a flu virus shortly before getting vaccinate, so the vaccine will not have time to build antibodies to protect you.
  • Different flu viruses go around every year (3 or 4 vaccines per year), so it is possible to be exposed to a flu virus not included in the seasonal flu vaccine(s).
  • Overall health and age factors can affect susceptibility (older people and people with chronic illnesses may have weaker immune systems).
 The Flu Vaccination
  • Everyone 6 months and older should get vaccinated annually (end of October) to allow time for antibodies to be generated.
  • Can be administered as shot or nasal spray