How does the COVID-19 vaccine help stop the spread of new strains?

The COVID vaccines are highly effective.
The current vaccines cause a powerful immune response that makes them highly protective, even if there is a drop in antibody strength. Antibodies are not the only part of the vaccines that makes them work. There are also T cells and memory B cells and other types of antibodies.
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Does the COVID-19 vaccine reduce the risk of getting "Long COVID"?

Reseach is showing that people who are vaccinated, even with just one dose, tend to have lower rates of long COVID-19 after catching the virus than those who are unvaccinated.
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Does the COVID-19 vaccine reduce the transmission of the Delta variant?

This study confirms that COVID-19 vaccination reduces the risk of delta variant infection and also accelerates viral clearance in the context of the delta variant. However, this study unfortunately also highlights that the vaccine effect on reducing transmission is minimal in the context of delta variant circulation.
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What is a benefit of COVID-19 vaccines?

COVID vaccines reduced the potential global death toll during the pandemic by almost two-thirds in their first year, saving an estimated 19.8 million lives, according to a mathematical modeling study yesterday in The Lancet Infectious Diseases.
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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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Here's What I Learned From Getting COVID



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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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 COVID-19 cause hair loss?


But excessive hair loss can occur after a major physical or emotional stressor such as fever, illness, pregnancy, surgery or grief, disrupting the normal hair growth cycle and forcing more hairs into the shedding phase. “It's not specific to COVID, but very common with COVID,” Dr. Young explains.

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Is Delta more transmissible than the Alpha COVID-19 variant?


It's estimated that Delta caused more than twice as many infections as previous variants—in Connecticut, it was estimated to have been 80 to 90% more transmissible than the Alpha variant.

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How contagious is the COVID-19 Delta variant?

Delta is believed to be more than twice as contagious as previous variants, and studies have shown that it may be more likely than the original virus to put infected people in the hospital.
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Is the Delta variant more contagious than the original strain of COVID-19?


People infected with the Delta variant have roughly 1,000 times more copies of the virus in their respiratory tract than those infected with the original strain of COVID-19. Those who are fully vaccinated are much less likely than those who are unvaccinated to contract and spread the Delta variant, but it does happen.

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How many times can I get COVID-19?

'A long-term pattern' According to some infectious disease researchers, Covid-19 reinfections are likely to become more common as time goes on and different variants continue to circulate—with some people potentially seeing third or fourth reinfections within a year.
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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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How long could the COVID-19 virus linger in your body?

But for most infected people, virus levels in the body peak between three and six days after the original infection, and the immune system clears the pathogen within 10 days. The virus shed after this period is generally not infectious.
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Does the Omicron COVID-19 variant cause more severe disease?


Omicron infection generally causes less severe disease than infection with prior variants. Preliminary data suggest that Omicron may cause more mild disease, although some people may still have severe disease, need hospitalization, and could die from the infection with this variant.

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Is the COVID-19 Omicron variant more transmissible than previous variants?

The good news was that the new variant caused less severe illness and death than Delta. But it was also highly transmissible—more contagious than any variant that came before it.
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How do the COVID-19 Delta variants differ?

Research suggests that changes to the spike protein may make the Delta variant up to 50% more transmissible than other COVID-19 variants. For people who haven't had the coronavirus vaccine, the Delta variant may cause more severe illness than the original strain of the virus.

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Can you still test positive after recovering from COVID-19?

According to the Centers for Disease Control and Prevention, some people who contract COVID-19 can have detectable virus for up to three months, but that doesn't mean they are contagious. When it comes to testing, however, the PCR tests are more likely to continue picking up the virus following infection.
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How long does COVID-19 rebound usually last?

How long will a rebound last? In the cases that have been described, rebound symptoms improved and/or positive tests became negative within 3 days for most people.
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How long does COVID-19 rebound last?

So far there have been no reports of severe illness in those who have experienced covid rebound, and most people seem to recover and stop testing positive around three days later without needing additional covid-19 treatment.
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How long should I quarantine after COVID-19 exposure if I am vaccinated?


Quarantine: If you have received all vaccine and booster doses recommended by CDC, you do not need to quarantine. You should wear a well-fitting mask around others for 10 days from the date of your last close contact with someone with COVID-19 (the date of last close contact is considered day 0).

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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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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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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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Are breakthrough cases of COVID-19 better than vaccinated people?


May 17, 2022 -- Vaccinated people who have a breakthrough case of Omicron will have better protection against COVID-19 variants than vaccinated people who receive a booster shot, two new studies show.

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