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    When will I test negative for Covid? When you are the most contagious and how long Omicron lasts

    With all this is mind, here are the signs of Covid you should look out for, how long it lasts and when you are most infectious, explained

    When will I test negative for Covid? When you are the most contagious and how long Omicron lasts

    When will I test negative for Covid? When you are the most contagious and how long Omicron lasts With all this is mind, here are the signs of Covid you should look out for, how long it lasts and when you are most infectious, explained

    By Alex Finnis Reporter

    April 22, 2022 5:29 pm(Updated May 12, 2022 3:39 pm)

    The vast majority of Covid-19 restrictions have been dropped in the UK, but the virus is still very much a part of our lives.

    The highly-infectious BA.2 Omicron sub-variant caused a big spike in infections in March and April, and while we are now past the peak figures remain high.

    People who want to check if they have the virus must now pay for private tests, after the Government scrapped the universal provision of free PCRs and lateral flows.

    In the absence of free testing the NHS has updated its list of symptoms to add nine more possible signs of coronavirus, having only listed three for the majority of the pandemic.

    The UK Government has moved away from a system of enforced restrictions and towards one that places more responsibility on the individual under its “Living with Covid” plan.

    With all this is mind, here are the signs of Covid you should look out for, how long it lasts and when you are most infectious, explained.

    What are the symptoms of Covid-19?

    The NHS now lists the following as official Covid symptoms:

    High temperature or shivering (chills) – a high temperature means you feel hot to touch on your chest or back (you do not need to measure your temperature)

    New, continuous cough – this means coughing a lot for more than an hour, or three or more coughing episodes in 24 hours

    Loss or change to your sense of smell or taste

    Shortness of breath

    Feeling tired or exhausted

    Aching body Headache Sore throat

    Blocked or runny nose

    Loss of appetite Diarrhoea

    Feeling sick or being sick

    The NHS says the symptoms “are very similar to symptoms of other illnesses, such as colds and flu”.

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    How long does Covid last?

    The NHS says most people with Covid-19 or will feel better within a few weeks.

    For many, particularly people who are fully vaccinated and have received a booster, it will be just a few days.

    However, data from the Zoe Covid study, which has been researching the virus since the start of the pandemic, suggests one in 10 people may still have symptoms after three weeks, and some may suffer for months.

    “Our research shows that some people are experiencing fatigue, headaches, coughs, anosmia (loss of smell), sore throats, delirium, and chest pain for more than three weeks after first reporting symptoms in the app,” the study says.

    When are you most infectious?

    For previous variants such as Delta, the World Health Organisation said symptoms could begin to develop anywhere between two days and two weeks after infection.

    However, the incubation period for Omicron and its offshoots is believed to be much shorter – between three and five days.

    It is believed people are at their most infectious one to two days before the onset of symptoms, and during the two to three days afterwards.

    This helps explain why Omicron has been able to spread so quickly, as people have passed the virus on before even realising they have it.

    Harvard University says: “People are thought to be most contagious early in the course of their illness.

    “With Omicron, most transmission appears to occur during the one to two days before onset of symptoms, and in the two to three days afterwards. People with no symptoms can also spread the coronavirus to others.”

    Health Secretary Sajid Javid said in December: “Recent analysis from the UK Health Security Agency suggests that the window between infection and infectiousness may be shorter for the Omicron variant than the Delta variant.”

    Data shows that the majority of people are no longer infectious seven days after beginning to experience symptoms or first testing positive, particularly when vaccinated, and the vast majority are no longer infectious after 10 days.

    When will you stop testing positive?

    Most people will stop testing positive within 10 days of starting to experience symptoms, or receiving their first positive test.

    However, it is possible to continue testing positive for weeks or even months after having the virus.

    The good news is that even if you are continuing to test positive after a long time, it is not because you are actually contagious.

    The Gavi Vaccine Alliance explains: “The time taken to test negative after contracting Covid-19 depends on the severity of the case, and also on the test itself. PCR tests that hunt out parts of viral genetic material (RNA in the case of Covid-19) in our bodies and amplify it so we can detect it are extremely sensitive and can even pick up the presence of few viral fragments. This is because fragments of viral RNA can remain in our bodies long after the infection is over and the virus has been cleared from our system.”

    Source : inews.co.uk

    How Long Before Someone With COVID

    Infectious diseases specialists believe that on average the vast majority of people who contract the coronavirus are most contagious immediately before and immediately after symptoms appear. But how long people are contagious for varies from person to person, depending on the severity of their infection, the intensity of their exposure, and the response of their immune system.

    HEALTH NEWS

    How Long Before Someone With COVID-19 Isn't Contagious?

    Written by Julia Ries on January 20, 2022 — Fact checked by Maria Gifford

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    Experts say the window of highest infectivity

    Trusted Source Trusted Source Trusted Source

    seems to occur 2 days prior to symptom onset to 3 days after symptom onset.

    Rapid antigen tests can detect high viral loads and are currently thought to be reliable in telling people whether or not they could still be contagious.Health officials recommend isolating for 5 to 10 days if you develop COVID-19.

    Infectious diseases specialists believe that, on average, the vast majority of people who contract the coronavirus are most contagious immediately before and immediately after symptoms appear.

    Research Trusted Source Trusted Source

    shows that most people will no longer be contagious 5 to 6 days after symptoms appear. Still, some evidence suggests about one-third

    Trusted Source Trusted Source

    of people who contract the infection continue to be infectious for a longer period.

    Health experts do not recommend using a PCR test to determine if you may still be contagious since these types of tests are sensitive and can detect small amounts of non-infectious viruses.

    Rapid antigen tests, on the other hand, can detect high viral loads and are currently thought to be more reliable in telling people whether or not they could still be contagious.

    “For a symptomatic infection, the time from illness onset has been shown to be more reliable than PCR testing to predict the presence of live [or] contagious COVID-19 virus,” Dr. Charles Bailey, the medical director for infection prevention with Providence Mission Hospital and Providence St. Joseph Hospital in Orange County, CA, told Healthline.

    “Antigen testing may be more capable of determining infectivity since its threshold for detecting COVID-19 more closely aligns with an amount of virus capable of transmission,” he added.

    How long are people contagious?

    According to Bailey, the length of infectivity will vary from person to person and depends on the severity of infection, the intensity of exposure, and each person’s immune system.

    In general, the window of highest infectivity

    Trusted Source Trusted Source

    seems to occur 2 days before symptom onset to 3 days after symptom onset.

    Contact tracing studies

    Trusted Source Trusted Source

    from earlier in the pandemic have found that it’s less common for transmission to occur when exposed to a person 6 days after their symptom onset.

    It’s still possible for people to transmit the virus to others after 5 days of symptoms, which is why health officials are advising people who recently recovered from their illness to continue wearing a mask for 5 days when they’re around other people.

    One study recently published in the International Journal of Infectious Diseases found that about one-third of people with the infection continue to be contagious after 5 days.

    But it’s unclear if this remains true with the Omicron variant.

    A recent study Trusted Source Trusted Source

    from Japan found that patients infected with the Omicron variant shed virus for longer after symptoms appear.

    The study suggests that the peak of viral shedding with the Omicron variant may be 2 or 3 days longer than previous variants.

    Do certain symptoms suggest we’re contagious?

    Dr. Julie Parsonnet, an infectious diseases epidemiologist with Stanford Medicine, says there doesn’t appear to be a strong relationship between a person’s symptoms and how much virus is in their nose and throat.

    But in general, people who’ve tested positive and are symptomatic are more at risk of transmitting and should isolate at home to avoid transmitting the virus to others.

    “People whose symptoms are not improving — particularly if they have coughing and sneezing — should continue to stay home until they’re feeling better,” Parsonnet said.

    If someone carrying the virus is coughing or sneezing, there’s a greater chance they can spread the virus to others since they’re releasing respiratory droplets that carry the virus.

    Researchers are still studying if and how symptoms correlate to how contagious a person is.

    “We don’t exactly how symptom duration relates to how long someone is contagious, but we do typically associate symptoms like fever as indication that someone is still infectious,” said Dr. John Carlo, the CEO of Prism Health North Texas and member of the Texas Medical Association COVID-19 Task Force.

    Research Trusted Source Trusted Source

    has also shown that people with asymptomatic infections, though less likely than symptomatic individuals to spread the infection, can transmit it to others.

    Parsonnet says it’s difficult to quantify how long asymptomatic individuals are contagious because it’s hard to identify when and how long they’ve been infected.

    “Asymptomatic transmission might prove to be more common with the Omicron variant given its higher infectivity, but too early to draw this conclusion now,” Bailey said.

    Source : www.healthline.com

    How Long Are You Contagious With COVID? Here’s What We Know – NBC Chicago

    When are people with COVID most contagious and how long can they spread it? When should you get tested after exposure and how long should you quarantine, if at...

    When are people with COVID most contagious and how long can they spread it? When should you get tested after exposure and how long should you quarantine, if at all?

    The latest guidance from the Centers for Disease Control and Prevention shifted the timing for isolation and quarantine as some experts say the time frame when people are most contagious is earlier.

    "As we've seen these new variants develop - delta, now omicron - what we're seeing is everything gets sped up from a COVID perspective," Chicago Department of Public Health Commissioner Dr. Allison Arwady said Thursday. "It is taking less time from when someone is exposed to COVID to potentially develop infection. It is taking less time to develop symptoms, it is taking less time that someone may be infectious and it is, for many people, taking less time to recover. A lot of that is because many more people are vaccinated."

    Here's what we know.

    Stay informed during the severe weather season with our local news and weather app. Get the NBC 5 Chicago app for iOS or Android and pick your alerts.

    When Are People with COVID Most Contagious?

    The CDC says that its guidelines were updated to reflect growing evidence that suggests transmission of COVID-19 often occurs one to two days before the onset of symptoms and during the two to three days after.

    "This has to do with data from the CDC that really showed after seven days there's virtually no risk of transmission at this point," Arwady said. "And in that five-to-seven-day window, you know, there's some depending on whether people have been vaccinated underlying conditions, etc., but the risk drops a lot and the feeling is that in the general population, combined with masking, etc. the risk really is very low."

    For those without symptoms, CDC guidance states they are considered contagious at least two days before their positive test.

    When is the Best Time to Get Tested After Exposure?

    The CDC states that anyone who may have been exposed to someone with COVID should test five days after their exposure, or as soon as symptoms occur.

    "If symptoms occur, individuals should immediately quarantine until a negative test confirms symptoms are not attributable to COVID-19," the guidance states.

    Illinois Department of Public Health Director Dr. Ngozi Ezike said that incubation times could be changing, but those who test early should continue testing even if they get negative results.

    "We might be learning that the time of incubation might be a little shorter. So maybe you'd be testing at two days," Ezike said. "Obviously if you're symptomatic, you test right away. But you know, if you want to test at two days, but that negative test... the two days should not make you think, 'oh good, I'm clear.' You know, you might want to test again and of course symptoms can you cannot ignore - scratchy throat, headaches, all kinds of symptoms - anything new can be a symptom of this new illness."

    How Soon Might Symptoms Appear?

    According to earlier CDC guidance, COVID symptoms can appear anywhere from two to 14 days after someone is exposed to the virus.

    Anyone exhibiting symptoms should get tested for COVID-19.

    How Long Should you Quarantine or Isolate?

    First things first, those who believe they have been in contact with someone who has COVID and are unvaccinated should quarantine. Those who test positive, regardless of vaccination status, must isolate, according to the Centers for Disease Control and Prevention.

    Here's the breakdown:

    Quarantine

    Those who have been within 6 feet of someone with COVID for a cumulative total of at least 15 minutes over a 24-hour period should quarantine for five days if unvaccinated or more than six months out from their second dose, according to updated CDC guidance issued Monday.

    Once that period ends, they should partake in strict mask use for an additional five days.

    Previously, the CDC said people who were not fully vaccinated and who came in close contact with an infected person should stay home for at least 10 days.

    Prior to Monday, people who were fully vaccinated — which the CDC has defined as having two doses of the Pfizer or Moderna vaccines, or one dose of the Johnson & Johnson vaccine — could be exempt from quarantine.

    Those who are both fully vaccinated and boosted do not need to quarantine if they are a close contact of someone with COVID, but should wear a mask for at least 10 days after exposure. The same goes for those who are fully vaccinated and not yet eligible for their booster shot.

    Local health authorities can also make the final determination about how long a quarantine should last, however. And testing can play a role.

    Illinois' health department said it will adopt the CDC revised guidelines on isolation and quarantine for COVID.

    In Chicago, those who travel to or from certain parts of the country and are unvaccinated must quarantine upon arrival to the city, but the length of time they should do so for depends on whether they get tested for COVID.

    The city has not yet said if the new CDC guidance will change its travel advisory guidelines.

    As of Tuesday, the city's travel advisory recommends those who travel from designated warning states must:

    Get tested with a viral test 3-5 days after travel AND stay home and self-quarantine for a full 7 days.

    Even if you test negative, stay home and self-quarantine for the full 7 days.

    Source : www.nbcchicago.com

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