Can I still transmit the virus if I have had the COVID-19 vaccine?

Can fully vaccinated people still transmit the virus to others, including other vaccinated people? While it is possible, Dr. Cardona says that the ability to transmit COVID-19 may occur at a lower rate. She adds that this could also be a reality for people who don't have a good immune response to vaccines.
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Can vaccinated people spread COVID-19?

Some fully vaccinated people will still get COVID-19 if they are exposed to the virus that causes COVID-19. These are called vaccine breakthrough infections.

People with vaccine breakthrough infections may spread COVID-19 to others.

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Do I need to wear a mask and avoid close contact with others if I am vaccinated against COVID-19?

Generally, if you are up to date on your COVID-19 vaccinations, you do not need to wear a mask in outdoor settings. Check your local COVID-19 Community Level for recommendations on when to wear a mask indoors and additional precautions you can take to protect yourself from COVID-19. If you are immunocompromised or more likely to get very sick from COVID-19, learn more about how to protect yourself.

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Can you be asymptomatic with COVID-19 infection if you have previously been vaccinated for COVID-19?


Indeed, it is possible that vaccinated people who get infected may easily remain asymptomatic or present with mild symptoms and thus go unnoticed.

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Has anyone gotten COVID-19 after being fully vaccinated?


Some fully vaccinated people—and those who have received boosters—have acquired SARS-CoV-2 and developed COVID-19. That is expected. One Mayo Clinic intensivist explains what to know about COVID-19 vaccination, boosters and breakthrough infections.

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Can you transmit COVID after vaccination?



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.

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How does the COVID-19 vaccine boost your immune system?

Vaccines work by stimulating your immune system to produce antibodies, exactly like it would if you were exposed to the disease. After getting vaccinated, you develop immunity to that disease, without having to get the disease first.
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Will a person with COVID-19 vaccine have a positive antibody test?

A COVID-19 vaccination may also cause a positive antibody test result for some but not all antibody tests. You should not interpret the results of your SARS-CoV-2 antibody test as an indication of a specific level of immunity or protection from SARS-CoV-2 infection.
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Should you get the COVID-19 vaccine if you already had COVID-19 and recovered?


If I already had COVID-19 and recovered, do I still need to get a COVID-19 vaccine? You should get a COVID-19 vaccine even if you already had COVID-19. Getting a COVID-19 vaccine after you recover from COVID-19 infection provides added protection to your immune system.

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Are people who have had COVID-19 more prone to reinfection than vaccinated individuals?


Vaccines add protection. A study published in August 2021 indicates that if you had COVID-19 before and are not vaccinated, your risk of getting re-infected is more than two times higher than for those who got vaccinated after having COVID-19.

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Can I stop wearing a face mask and social distancing after receiving the COVID-19 vaccine?

Not yet. We don’t know how effective the vaccine is going to be, or how many people are going to receive it. The recommendation is continue to practice social distancing, wear a face mask, and really good hand-washing. We’re going to have to do this for a little while longer.

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What is the duration of protection against COVID-19 when vaccinated?


Studies of the duration of protection of COVID-19 vaccine effectiveness indicate that vaccine effectiveness decreases more against infection and symptomatic disease than against severe disease in the 6 months after full vaccination.

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Can breakthrough COVID-19 infections be transmitted to others?


SARS-CoV-2 is still easily transmitted With breakthrough infections, the viral loads are similar to those who are unvaccinated. That means such infections among fully immunized patients could be transmitted to others who are unvaccinated or have compromised immune systems.

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Can COVID-19 breakthrough infections also be transmitted through vaccinated individuals?

They found that a large portion of those infected in these clusters had been fully vaccinated. Furthermore, the viral loads were similar between those vaccinated and unvaccinated, suggesting that vaccinated individuals who develop breakthrough infections are very capable of transmitting the infection to others.
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Can vaccinated people socialize during the COVID-19 pandemic?

Fully vaccinated people can visit privately with other fully vaccinated individuals indoors and without a mask or physical distancing.

Fully vaccinated people can visit with unvaccinated people from a single household who are at a low risk for severe COVID-19 disease, indoors and without a mask or physical distancing.

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Can you get reinfected with COVID-19 after having COVID?


If you or a loved one had COVID‑19, you're likely wondering how long you might be protected from getting it again. In general, research suggests that natural immunity against infection is strong for about 3-5 months. After that, your risk of COVID‑19 reinfection may start to go up.

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Can you get reinfected with COVID-19?

Reinfections can and have happened even shortly after recovery, the researchers said. And they will become increasingly common as immunity wanes and new SARS-CoV-2 variants arise.

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Do COVID-19 antibody tests detect vaccine antibodies?

• Some antibody tests will only detect antibodies from infection, not from vaccination with the virus that causes COVID-19.
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What does a negative COVID-19 antibody test result mean?

A negative result on a SARS-CoV-2 antibody test means antibodies to the virus were not detected in your blood.

It is unknown if all people who have a SARS-CoV-2 infection will develop antibodies in their bodies in an amount that can be detected by a SARS-CoV-2 antibody test.

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Why antibody testing Is not currently recommended to assess immunity after COVID-19 vaccination?

Currently authorized SARS-CoV-2 antibody tests have not been evaluated to assess the level of protection provided by an immune response to COVID-19 vaccination. If antibody test results are interpreted incorrectly, there is a potential risk that people may take fewer precautions against SARS-CoV-2 exposure.
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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.
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Does your immune system get stronger after COVID-19?


Any time you catch a virus and recover from the illness, you retain antibodies. These antibodies help your body fight off future infections so that you either don't get sick or have milder symptoms.

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What does a breakthrough COVID-19 infection mean?


There's a small chance you could catch the coronavirus after you get the vaccine. You might hear this called “breakthrough COVID-19.” Some people who get a breakthrough infection have no symptoms and don't get sick. But a small percentage get ill, go to the hospital, or die from COVID-19.

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How does the CDC define breakthrough COVID-19 infections?

Breakthrough infections were defined as new cases among persons who were fully vaccinated on the day of specimen collection. Hospitalizations among persons with breakthrough infection were defined as new hospital admissions among persons fully vaccinated on the reporting day.
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How long are you contagious after being sick with COVID-19?


Most people with COVID-19 are no longer contagious 5 days after they first have symptoms and have been fever-free for at least three days.

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