How long is the flu shot effective?

The flu shot is designed to offer protection for the duration of the flu season. Flu viruses change over time and our body’s immunity decreases between flu seasons. For these reasons, it is recommended that we get the influenza (flu) vaccine every year. Protective antibody levels are generally achieved within 2 to 3 weeks after vaccination.

The influenza vaccine is available at many locations throughout the community.


Can't find the answer you need? Ask us:

Fields marked with a * are required.

We welcome your questions. We can only respond to general information requests from residents of the Sudbury and Manitoulin districts. Do not submit personal health information. Our aim is to respond to your general questions within 2 business days.

Important:

Please only use this form for non-urgent issues. For public health emergencies that require an immediate response, call Public Health Sudbury & Districts directly. For an emergency response after hours or during holidays, please call Public Health Sudbury & Districts' after-hours service line.

Your privacy

Personal information contained on this form is collected under the authority of one or more of the following (as amended): the Health Protection and Promotion Act, R.S.O. 1990; the Immunization of School Pupils Act, R.S.O.1990; the Regulated Health Professions Act, 1991, S.O. 1991; and is in compliance with the Municipal Freedom of Information and Protection of Privacy Act, R.S.O. 1990 and the Personal Health Information Protection Act, 2004, S.O. 2004. This information is used to ensure that all appropriate personal care and public health services are provided, and that necessary statistics are kept. Questions about this collection should be directed to the Privacy Officer at Public Health Sudbury & Districts, 1300 Paris Street, Sudbury, ON  P3E 3A3, 705.522.9200.

This item was last modified on October 28, 2020




View all FAQs