What does COVID-19 efficacy mean?

Efficacy can refer to different things. For example, it can refer to how likely a person is to get COVID-19. A 0% efficacy would mean that vaccinated people in the research study were as likely to get COVID-19 as unvaccinated people.

Can you still get COVID-19 after vaccine?

Most people who get COVID-19 are unvaccinated. However, since vaccines are not 100% effective at preventing infection, some people who are fully vaccinated will still get COVID-19. An infection of a fully vaccinated person is referred to as a “breakthrough infection.”

What medications should be avoided before the COVID-19 vaccine?

It is not recommended you take over-the-counter medicine – such as ibuprofen, aspirin, or acetaminophen – before vaccination for the purpose of trying to prevent vaccine-related side effects.

Why don’t you get sick after the COVID-19 vaccine?

But you don’t actually get sick because your body is only exposed to a small portion of the virus and not the intact virus that can cause the disease. The antibodies against the spike protein remain in your body and are available and ready to protect you if you’re exposed to the SARS-CoV-2 virus.

Why do some people still get COVID-19 after being fully vaccinated?

Because vaccines are not 100% effective, as the number of people who are fully vaccinated goes up, the number of vaccine breakthrough infections will also increase. However, the risk of infection remains much higher for unvaccinated than vaccinated people.

Does the COVID-19 vaccine reduce your chances of getting COVID?

COVID 19-vaccines are effective and can lower your risk of getting and spreading the virus that causes COVID-19. COVID-19 vaccines also help prevent serious illness and death in children and adults even if they do get COVID-19.

Will COVID-19 vaccines cause some of the symptoms of the virus?

Sometimes after vaccination, the process of building immunity can cause symptoms, such as fever. These symptoms are normal and are a sign that the body is building immunity.

What exactly does the COVID-19 vaccine do to the body?

COVID-19 vaccines help our bodies develop immunity to the virus that causes COVID-19 without us having to get the illness.

Why are Moderna and Pfizer COVID-19 vaccine side effects worse after the second shot?

Side effects from both the Moderna and Pfizer COVID-19 vaccines are more common after the second dose. This is because your immune system recognizes the virus spike protein from the first dose of the vaccine and mounts a stronger response.

What are the common side effects of the Moderna COVID-19 vaccine?

The most commonly reported side effects were pain at the injection site, tiredness, headache, muscle pain, chills, joint pain, nausea and vomiting, swollen lymph nodes in the same arm of the injection and fever. Side effects typically started within two days of vaccination and resolved two or three days later.

Is it normal to have side effects after second COVID-19 vaccine?

Side effects after your second shot may be more intense than the ones you experienced after your first shot. These side effects are normal signs that your body is building protection and should go away within a few days.

What are the chances of getting serious side effects from the COVID-19 vaccine?

Allergic reaction or anaphylaxis was reported in 0.3% of participants after partial vaccination and 0.2% of participants after full vaccination. Meaning These findings suggest that some individuals experience more adverse effects after COVID-19 vaccination, but serious adverse effects are rare.

When will my COVID-19 vaccine side effects go away?

Side effects can affect your ability to do daily activities, but they should go away in a few days.