Scientists and public health experts say that vaccines are safe for most people. Here’s more information from health officials and agencies on the safety of COVID-19 vaccines and: – How COVID-19 vaccines are developed and tested so quickly – How pharmaceutical companies are being held to high medical standards by regulators – Results show that vaccines against COVID-19 are safe for elderly people – Advice for pregnant people – Vaccines can have side effects, but they are expected and not dangerous.
How vaccines are developed and tested– Health experts and the World Health Organization have explained that vaccines go through several testing phases involving thousands of volunteers before they can be approved.
COVID-19 vaccines are extremely effective at preventing serious illness and deaths, trials show.
Based on scientific trials from around the world, experts say that COVID-19 vaccines that have reported results have shown to be close to 100% effective at preventing hospitalizations and deaths. This includes vaccines with lower efficacy rates, which reflects how well the vaccine works in a controlled setting, and does not account for a vaccine’s ability to prevent serious illness.
What you need to know– Experts say COVID-19 vaccines are extremely effective at preventing serious illnesses, leading to lower hospitalizations and deaths – Though the Johnson & Johnson and AstraZeneca vaccines have a lower efficacy rate than the other vaccines, they are still effective at preventing serious illnesses, data shows – The US Centers for Disease Control and Prevention advise the continued use of masks and other preventative measures in public after inoculation.
Learn more about how COVID-19 vaccines work
There are multiple types of vaccines either being administered or in development to build immunity against COVID-19. Messenger RNA vaccines, also called mRNA vaccines, were some of the first to be rolled out. Similar to other vaccines, they have undergone trials and testing involving thousands of volunteers before being approved. Scientists, immunologists, health experts and authorities from around the world explain how mRNAs and other types of vaccine are safe and effective.
What you need to know– There are numerous types of vaccines either being administered or in development across the world – mRNA vaccines, some of the first to be made available, use genetic material to trigger the body’s immune system – All new vaccines are tested to ensure they are safe and effective before approval.
How COVID-19 vaccines are being prioritized and distributed.
Each country is responsible for determining the prioritization of vaccine distribution for its population, while the World Health Organization has urged authorities to prioritize “those most in need” and currently does not recommend making vaccines compulsory.
What you need to know: – Each country is in charge of their own vaccine distribution – Authorities have been working on strategies to ensure efficient rollout despite distribution challenges – Humanitarian groups warn against unequal vaccine distributions – Some countries have decided to widen the gap between the first and second dose of certain vaccines – Only a few countries are considering a ‘vaccine passport’ scheme.