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Flu Symptoms

Flu Symptoms typically develop one to seven days after exposure and can last from a few days to two weeks. Flu Symptoms may include any and all of the following:

  • Fever (usually 100°F or higher, lasting for several days), often with chills
  • Body aches or muscle aches
  • Headaches
  • Fatigue
  • Sore throat
  • Runny or stuffy nose
  • Cough
  • Eye pain such as burning, pain with eye movement, or sensitivity to light
  • Gastrointestinal symptoms, such as diarrhoea, nausea and vomiting, are fairly uncommon

Flu Shot Effectiveness

According to the Center for Infectious Disease Research and Policy, vaccination reduces the risk of flu by roughly 60% and can be even more effective at preventing serious flu complications, like pneumonia, which require hospitalization and can even lead to death. The 2015/2016 vaccine contains new viruses to cover those circulating in the population; therefore, vaccination is particularly important this year.

Adults 85+ who receive higher-dose vaccines require fewer hospitalizations for the flu and pneumonia.

Flu Shot Side Effects

Side effects from the flu shot are minimal – in fact, some people do not experience any side effects. If you do, soreness at the site of the shot and occasionally a mild viral syndrome (e.g., low-grade fever, muscle aches, nausea, etc.) are all normal and should subside within a day or two.