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If you've been exposed to someone with COVID or begin to experience symptoms of the disease, you may be asked to self-quarantine or self-isolate. What does that entail, and what can you do to prepare yourself for an extended stay at home? How soon after you're infected will you start to be contagious?

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Get the latest news on the coronavirus pandemic here. There have also been a few reported cases potentially spread through surfaces. But the risk of this is very low. While updated guidelines say that surface transmission is unlikely, people are still applying disinfection protocols to sanitize surfaces in homes. Coronavirus: What you Need to Know.

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Below, you'll find answers to common questions all of us are asking.

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We will be adding new questions and updating answers as reliable information becomes available. Also see our blog posts featuring experts discussing coronavirus and COVID and our glossary for relevant How long does at. GBS is a disorder in which the body destroys its own nerve cells. It can lead to muscle weakness and sometimes paralysis, trouble breathing, or, rarely, death. To date, about Most of the reported cases occurred in men ages 50 years and older, about two weeks after vaccination.

Almost all required hospitalization because GBS can affect the nerves to chest muscles and the diaphragm, making it difficult to breathe. Most people recover completely from GBS within a few months, but some never regain full strength. Mutations have led to several new, concerning coronavirus variants, including the B.

Emerging evidence suggests that the current vaccines are effective against at least some of these variants. The first study, published in NEJMlooked at data from more thanpeople from the country of Qatar between early February and late March The researchers found that in people who were fully vaccinated, the Pfizer vaccine was Studies on the effectiveness of the Moderna vaccine are ongoing.

In the lab, it has performed well against the Alpha variant, compared to the original, unmutated virus. However, it was less effective against the Beta and Delta variants compared to the unmutated virus and the Alpha variant. More study is needed to see if the laboratory hold up in real-world conditions.

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Even with some possible decrease in effectiveness against variants, they will still provide excellent protection against severe illness. It found that the vaccine produced a less robust antibody response against the Beta and Gamma variants compared to the response to the original SARS-CoV-2 virus. However, the T cell immune response held up, particularly among the type of T cells that prevent the virus from spreading within the body.

This immune response should protect against developing severe symptoms if a person does get infected.

The response was sustained for at least eight months, the duration of the study. There has a been a higher-than-expected of heart inflammation cases after vaccination with the mRNA COVID vaccines, particularly among boys and young men. However, the CDC still strongly recommends that all children 12 years and older be vaccinated.

Myocarditis and pericarditis after vaccination was most common in males ages 16 to Cases tended to occur within several days after the second mRNA vaccine dose. Most people who developed myocarditis or pericarditis had mild cases and recovered completely after treatment. If your child develops any of the following symptoms within a week of vaccination, seek medical care:. This or any other potential ificant side effect of a vaccine is always of special concern in children. In addition, long-term adverse health effects even after mild infection in children are now being recognized.

But the rise of the more contagious and possibly more dangerous Delta variant, combined with the protection offered by herd immunity, supports the CDC recommendation that all children ages 12 year and older get vaccinated. The Novavax COVID vaccine appears to be effective and safe, according to an analysis of phase 3 trials released by the company in How long does at press release.

The vaccine requires two doses, given three weeks apart, and may be stored using standard refrigeration. Two-thirds of the participants received the Novavax vaccine and one third received a placebo.

The trial was randomized, and observer-blinded, meaning the study participants and those evaluating the study endpoints did not know which participants received the vaccine. Of these, 63 occurred in the placebo group and 14 occurred in the vaccine group. All of the cases that occurred in the vaccine group were mild.

Different kinds of surfaces

Of those that occurred in the placebo group, 10 were moderate and four were severe. Side effects from the vaccine included arm pain at the injection site, fatigue, headache, and muscle pain. The Novavax vaccine is a recombinant protein vaccine. The Novavax vaccine contains spike protein produced in a laboratory along with an How long does at to boost the human immune response. ly, the Pfizer vaccine was authorized for use in children 16 years and older.

For now, this is the only vaccine authorized in the U. Pfizer has been conducting age de-escalation studies, in which its vaccine is tested in groups of children of descending age.

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The trial enrolled 2, adolescents; half received the Pfizer mRNA vaccine, the other received a saltwater placebo. The immune response in the vaccinated adolescent group was even stronger than that in vaccinated to year-olds enrolled in an earlier study.

Vaccine-related side effects were mild and included pain at the injection site, tiredness, headache, chills, muscle pain, fever, and t pain. Pfizer has also started testing the vaccine in children younger than 12 years.

Covid (coronavirus): long-term effects

New research suggests that people who have already gotten How long does at with COVID benefit from the vaccine, possibly even more than vaccinated people who were not ly infected. And a study published in Science compared the effects of the Pfizer vaccine in people with and without prior infection. The researchers found that ly infected people who were vaccinated had a stronger immune response against the B. for more new questions and answers. What is coronavirus and how does it spread? How long does coronavirus live on different surfaces?

Take a moment to reacquaint yourself with basic information about this virus and the disease it causes. By now, many of us are taking steps to protect ourselves from infection. This likely includes frequent handwashing, regularly cleaning frequently touched surfaces, and social distancing.

How do each of these measures help slow the spread of this virus, and is there anything else you can do? Though no one is invulnerable, we've seen that older adults are at increased risk for severe illness or death from COVID Underlying conditions, including heart disease, lung disease, and diabetes, increase risk even further in those who are older.

In addition, anyone with an underlying medical condition, regardless of their age, faces increased risk of serious illness. Or you may be in a position where you are caring for a loved one with the disease. It's important to know what to do if you find yourself in any of these situations. Stock up with medications and health supplies now, and learn the steps you can take to avoid infecting others in your household and to avoid getting sick yourself if you are caring for someone who is ill.

While there are no specific treatments for COVID at this time, there are things you can do to feel better if you become ill. In the meantime, researchers around the globe are looking at existing drugs to see if they may be effective against the virus that causes COVID, and are working to develop new treatments as well. So far, the vast majority of coronavirus infections have afflicted adults. And when kids are How long does at, they tend to have milder disease.

Still, as a parent, you can't help but worry about the safety of your children. Many parents are also trying to find a balance between answering their children's questions about the pandemic and enforcing health-promoting behaviors and social distancing rules without creating an atmosphere of anxiety. Not to mention keeping kids engaged and entertained with schools closed and playdates cancelled.

The news about coronavirus and its impact on our day-to-day lives has been unrelenting. There's reason for concern and it makes good sense to take the pandemic seriously. But it's not good for your mind or your body to be on high alert all the time. Doing so will wear you down emotionally and physically. Under the new system, the variants will be named using letters of the Greek alphabet.

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For example:. The vast majority of breakthrough infections were asymptomatic, mild, or moderate. About 1, people with breakthrough infections were hospitalized, and died, though the hospitalizations and deaths were not always related to COVID These s tell us that the vaccines are doing a good job preventing infection and severe illness.

Mutations have led to at least four concerning coronavirus variants. One, called Alpha, or B. Another, called Beta, or B. A third, called Gamma, or P. And a fourth, called Delta, or B. All four variants have now been detected in countries around the globe. All of these variants contain mutations on the virus's spike protein. The Alpha, Beta, and Gamma variants share a key mutation called NY on the How long does at protein, which allows the virus to bind more tightly to human cells.

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The Beta and Gamma variants also share a second mutation, called EK, which might make it easier for them to re-infect someone who has already been infected or, possibly, someone who has been vaccinated. The B. There are conflicting reports about whether this variant is more virulent; two published studies found that the B. The Delta, or B. The CDC has classified it as a variant of concern.

The Delta variant is highly transmissible, and there is some evidence that it is associated with increased disease severity. The emergence of these more transmissible and virulent variants is yet another reason why getting vaccinated once you are eligible and following CDC guidance on prevention measures continue to be as important as ever. It does appear that people who recover from COVID have an increased risk of developing other medical conditions, at least in the short term.

One study, published in The BMJcollected laboratory test and hospital admissions data from a health plan in the US. The researchers compared How long does at from more thanadults, ages 18 to 65 years, who tested positive for the SARS-CoV-2 virus into data from a control group that was collected inbefore the pandemic.