Things to Know About COVID-19 Vaccines
What we know
Studies show that COVID-19 vaccines are effective at keeping you from getting COVID-19. Getting a COVID-19 vaccine will also help keep you from getting seriously ill even if you do get COVID-19.
COVID-19 vaccination is an important tool to help us get back to normal. Learn more about the benefits of getting vaccinated.
COVID-19 vaccines teach our immune systems how to recognize and fight the virus that causes COVID-19. It typically takes two weeks after vaccination for the body to build protection (immunity) against the virus that causes COVID-19. That means it is possible a person could still get COVID-19 before or just after vaccination and then get sick because the vaccine did not have enough time to provide protection. People are considered fully protected two weeks after their second dose of the Pfizer-BioNTech or Moderna COVID-19 vaccine, or two weeks after the single-dose Johnson & Johnson’s Janssen COVID-19 vaccine.
You should keep using all the tools available to protect yourself and others until you are fully vaccinated. After you are fully vaccinated, you may be able to start doing some things you had stopped doing because of the pandemic. Learn more about what you can do when you have been fully vaccinated.
What we do not know
Although COVID-19 vaccines are effective at keeping you from getting sick, scientists are still learning how well vaccines prevent you from spreading the virus that causes COVID-19 to others, even if you do not have symptoms. Early data show the vaccines do help keep people with no symptoms from spreading COVID-19, but we are learning more as more people get vaccinated.
We’re also still learning how long COVID-19 vaccines protect people.
For these reasons, people who have been fully vaccinated against COVID-19 should keep taking precautions in public places, until we know more, like wearing a mask, staying 6 feet apart from others, avoiding crowds and poorly ventilated spaces, and washing their hands often.
Risk of Severe Illness
COVID-19 shows that some people are at higher risk of getting very sick from this illness.
CDC has developed guidance to help in the risk assessment and management of people with potential exposures to COVID-19.
How Can I Protect Myself?
People can help protect themselves from respiratory illness with everyday preventive actions.
• Avoid close contact with people who are sick and wear a mask
• Avoid touching your eyes, nose, and mouth with unwashed hands.
• Wash your hands often with soap and water for at least 20
• Use an alcohol-based hand sanitizer that contains at least 60% alcohol if soap and water are not available.
If You Are Sick
To keep from spreading respiratory illness to others, you should:
Stay home when you are sick.
Call your healthcare provider and let them know about your symptoms. Tell them that you have or may have COVID-19. This will help them take care of you and keep other people from getting infected or exposed.
Cover your cough or sneeze with a tissue, then throw the tissue in the trash.
Clean and disinfect frequently touched objects and surfaces.
For more information: www.cdc.gov/COVID19