Vaccines save up to 3 million lives around the world each year.1 They may give people long-term, and sometimes lifelong, protection against certain infectious diseases. Vaccines are usually recommended during early childhood to help prevent diseases like measles and chickenpox. They also play an important role in adolescence and adulthood.
- diseases we’re exposed to while travelling
- new threats like COVID-19
Getting a vaccine is the best way to help protect yourself against some of the world’s most challenging infectious diseases.
Reference: 1. National Health Service. Why vaccines are important. Updated July 30, 2019. Accessed September 28, 2022. https://www.nhs.uk/conditions/vaccinations/why-vaccination-is-safe-and-important
How do vaccines work?
Vaccines work by teaching your immune system to recognise certain viruses. After you receive a vaccine, your body will be more prepared to fight back. Vaccines can help prevent or reduce the severity of the illness if you are exposed to the virus that causes the disease.
The science behind many types of vaccines has existed for decades. Many different techniques are used to make vaccines, and they each work in specific ways.
To help keep us protected over time, some vaccines may require a booster shot. This is an additional dose of a vaccine to “boost” your immunity against a virus.
Booster shots are needed for 2 reasons:
The guidelines for booster shots for COVID-19 continue to be updated, so it’s important to keep up with the latest news to see if you or your loved ones are eligible. Healthcare- or vaccine-related questions should be discussed with your healthcare provider. If you do need a booster shot, there may be different vaccine options that you can choose from.
Whether you're getting your first dose of the COVID-19 vaccine or a booster shot, your healthcare provider can help you understand your options.