Influenza (Flu) Season

Influenza, also called the flu, is an infection of the upper airway caused by an influenza virus. Every year there is a period of time where there are more outbreaks of the flu, this is called flu season. Flu season generally occurs during the fall, winter and early spring.

Getting sick with the flu can put you at risk of getting other infections. These include viral or bacterial pneumonia which affect the lungs. The risk of complications, which can be life-threatening, is greater for seniors 65 years and older, very young children, and people who have lung or heart diseases, certain chronic health conditions, or weakened immune systems. In Canada, thousands of people are hospitalized and may die from the flu and its complications during years with widespread or epidemic influenza activity.

How can the flu be prevented?

The influenza vaccine is a safe and effective way to help you and your family stay healthy and prevent illness. It can even save lives.

In addition to getting the flu vaccine, you can help stop the spread of the flu by:

  • Washing your hands regularly
  • Promptly disposing of used tissues in the waste basket or garbage
  • Coughing and sneezing into your shirt sleeve rather than your hands
  • Staying home when you are ill
  • Keeping your hands away from your face
  • Keeping common surface areas, such as doorknobs, light switches, and keyboards, clean and disinfected
  • Eating healthy foods and staying physically active to keep your immune system strong

What is in the flu vaccine?

The 2016-17 seasonal trivalent and quadrivalent vaccines contain:

  • A/California/7/2009 (H1N1)pdm09-like virus
  • A/Hong Kong/4801/2014 (H3N2)-like virus
  • B/Brisbane/60/2008-like virus
  • B/Phuket/3073/2013-like virus (in quadrivalent vaccines only)

There are 2 quadrivalent vaccines (a live attenuated vaccine and an inactivated vaccine) that will be available at no cost for eligible children in B.C. The quadrivalent vaccines are not publically funded for adults, but may be available for purchase from select pharmacies and travel clinics.

Important Vaccine Information

This year people with egg allergies can be safely immunized with the live and inactivated influenza vaccines.

To learn more about this year’s seasonal influenza vaccine, including who is eligible to receive the flu vaccines for free, visit ImmunizeBC - Influenza. For more information to help you and your family stay healthy and prepare for flu season, click on the links below.

Featured Topics

Influenza (Flu)

To learn about the flu, how it can be prevented, what the symptoms are, what the home treatments are, and more, click on the link below.

Influenza (Flu) Vaccinations

Influenza vaccines are a safe and effective way to help people stay healthy, prevent illness, and even save lives. To learn about the inactivated influenza vaccine, the live attenuated influenza vaccine, myths and facts about influenza immunization, and the benefits of getting the vaccine, click on the links below.

Pneumococcal Vaccinations

Pneumococcal infection is caused by a germ or bacteria. It can cause serious and life-threatening infections including meningitis, an infection of the lining that covers the brain, and septicemia, an infection of the blood. To learn more about the vaccines that can help protect against pneumococcal infection, click on the links below.

Washing Your Hands

Hand washing is one of the best ways to keep yourself and others healthy. Regularly washing your hands can help stop the spread of germs that cause the flu. To learn more, click on the link below.

Your Health Authority

To learn more about flu related information and services in your area, visit your Health Authority website listed below.

For Health Care Workers

The health authorities in B.C. have an influenza control policy to protect high risk people from influenza. Health care providers are required to wash their hands regularly, stay home when they are sick, and get an influenza vaccine or wear a mask during flu season. This section provides information and resources related to the influenza control policy for health care workers as made available by Immunize BC. The links and subsequent information are for your general information, please speak to your supervisor if you are a health care worker on how this programs applies to your facility or role.

Useful Websites


ImmunizeBC works to improve the health of British Columbians and reduce the number of infections by vaccine-preventable diseases by providing information on immunizations to individuals, families, and health care providers. They also provide tools to make it easier for B.C. families to get immunized. For information on where you can locate flu clinics across the province, or to learn more about the flu and the flu vaccine, click on the links below.

Healthy Canadians

Healthy Canadians is a Government of Canada website that provides health and safety information for Canadians and health professionals. Their flu (influenza) web page provides answers to many questions related to the seasonal flu. Understanding the seasonal flu, the health complications the flu can cause, and who is at risk, can help you protect yourself and your family from becoming sick with the flu. For information about the flu, how to fight the flu, and how to find a flu clinic near you, click on the link below.

Last Reviewed: September 29, 2016

Is it an emergency?

If you or someone in your care has chest pains, difficulty breathing, or severe bleeding, it could be a life-threatening emergency. Call 9-1-1 or the local emergency number immediately.
If you are concerned about a possible poisoning or exposure to a toxic substance, call Poison Control now at 1-800-567-8911.

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