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As is routine for any new variants under investigation, UKHSAis carrying out laboratory and epidemiological investigations to better understand the properties of this variant. The UK has been hard-hit by a further spike in Covid-19 cases in recent weeks, with infections being driven by a sub-lineage of the Omicron variant known as BA.2 or "Stealth Omicron". Approximately half of PCR tests in the UK are able to detect SGTF. UKHSAs most recent variant technical briefing includes examination of a number of recombinant variants which have been identified in the UK, as well as updated epidemiological and genomic analysis of Omicron BA.2. This data shows that protection against severe illness from COVID-19 remains at over 90% in those aged 65 and over up to 14 weeks after a booster dose. Although there was a rapid increase in SARS-CoV-2 infections in care homes during December 2021 in line with case rises in the community, there has not been an associated increase in hospital admissions. It is very likely that we will find more cases over the coming days as we are seeing in other countries globally and as we increase case detection through focused contact tracing. Early data shows that young children who are hospitalised experience mild illness and are discharged after short stays in hospital. UKHSAis carrying out targeted testing at locations where the positive cases were likely to be infectious. In severe cases, the SpO2 Level may also decrease. Self-reported long COVID after infection with the Omicron variant in While signs remain encouraging on Omicrons severity compared with Delta, the high levels of community transmission continue and may cause pressures on health services. Delta remains the predominant variantin England, accounting for over 99% of all COVID-19 cases. Overall numbers of ICU admissions have decreased over time, but where data was available admissions with Omicron have increased from 9% to more than 50% in the most recent week. Please also make sure to follow all Government guidance to reduce the spread of infection. Omicron BA.4 and Omicron BA.5 were designated as variants of concern on 18 May on the basis of an apparent growth advantage over the previously-dominant Omicron BA.2 variant. "We must remain vigilant and take up vaccinations. Of 5,153 individuals identified with an Omicron infection between 1 November and 11 December 2021, 305 were linked to a previous confirmed infection and had an interval from the previous positive test of 90 days or more. Omicron BA.2 Variant Severity As previously published, data continues to show vaccine effectiveness against hospitalisation for Omicron remains high. Booster doses also increase the protection against symptomatic and asymptomatic infection which will reduce transmission in the population. It is very likely that we will find more cases over the coming days as we are seeing in other countries globally and as we increase case detection through focussed contact tracing. BA2 Variant is overtaking Delta and Omicron Cases at rapid speed. Vaccination is critical to help us bolster our defences against this new variant please get your first, second, third or booster jab without delay. While evidence is still emerging, so far it does not appear this variant causes more severe disease or renders the vaccines currently deployed any less effective. Overall, the original Omicron lineage, BA.1, is dominant in the UK and the proportion of BA.2 cases is currently low. So, like the original omicron strain (BA.1), the primary symptoms of a mild BA.2 infection are a cough, fever, fatigue and possible loss of taste or smell. We are particularly grateful to health protection specialists and the government of South Africa for early sharing of local information on the omicron variant in an exemplary way to support global health security. Analysis shows that protection against symptomatic disease 2 to 4 weeks after a booster dose ranges from around 65% to 75%, dropping to 55% to 65% at 5 to 9 weeks and 45% to 50% 10 weeks or more following the booster dose. The earliest of these has a specimen date of 19 January 2022. BA.1 accounts for most of the cases. These are potentially biologically significant mutations which may change the behaviour of the virus with regards to immune escape, transmissibility or susceptibility to treatments, but this has not been proven. The analysis looked at 581 people with confirmed Omicron. The Omicron variant of Covid-19 includes the lineages BA.1, BA.2, BA.3 and B.1.1.529. Dr Meera Chand, Director of Clinical and Emerging Infections at UKHSA, said: The reclassification of these variants as variants of concern reflects emerging evidence on the growth of BA.4 and BA.5 internationally and in the UK. As we all work to limit the high levels of transmission of this variant over the Christmas period, we are urging people to test regularly, particularly before attending social gatherings. Wear a mask in crowded places, including public transport and shops, to ensure we all help break the chains of transmission and slow the spread of this new variant. Dont worry we wont send you spam or share your email address with anyone. XD has not been identified in the UK to date, though 49 cases have been reported to global databases, the majority of these are in France. Dr Mary Ramsay, Head of Immunisation at UKHSA, said: These early estimates should be treated with caution but they indicate that a few months after the second jab, there is a greater risk of catching the Omicron variant compared to Delta strain. Face coverings in crowded indoor spaces and hand washing will help to reduce transmission of infection and are especially important if you have any respiratory symptoms. UKHSA is gathering scientific information as quickly as possible in order to inform the right balance of interventions to prevent transmission and protect lives. Headache. The individuals and their households have been told to self-isolate. More evidence is needed to know whether this is due to changes in the virus behaviour or to epidemiological conditions. BA.2 Omicron Subvariant Can Damage Your Lungs, Cause More Severe Disease Than You Can Expect: Study BA.2 Omicron Subvariant Can Damage Your Lungs, Cause More Severe Disease Than You Can. Added breakdown of cases by local authority to latest update. Booster jabs are protecting people against infection and severe disease so I urge you to play your part in our national mission and get boosted now. Check benefits and financial support you can get, Find out about the Energy Bills Support Scheme, National flu and COVID-19 surveillance report, higher risk of becoming seriously ill from respiratory infections, including COVID-19, this data should be interpreted with caution, This assessment is based on analysis of UK data, data on Omicron cases is published regularly here, Six cases of the SARS-CoV-2 variant known as B.1.1.529, Investigation of SARS-CoV-2 variants of concern: variant risk assessments, Investigation of SARS-CoV-2 variants: technical briefings, Coronavirus (COVID-19): guidance for local government, let fresh air in if meeting others indoors, wear a face covering or a face mask, particularly if you are in crowded and enclosed spaces. In some countries, BA.2 accounts for more than half of sequenced Omicron cases, it adds. AstraZeneca was the main vaccine used early in the programme in care homes and among those in clinical risk groups. What Is Your Risk of Getting the Omicron BA.2 Subvariant? - Healthline But the preliminary assessment found no evidence that vaccines would be any less effective against symptomatic disease for either sub-variant. Dr Susan Hopkins, Chief Medical Adviser at UKHSA, said: Hospitalisations always lag a few weeks behind infections, therefore it isnt surprising that we have started to see people being admitted to hospital with the Omicron variant. You have accepted additional cookies. It was designated a variant of concern (VOC) on Saturday 27 November. BA.2 Symptoms Doctors Are Seeing The Most Right Now - Yahoo! News In total, 40 countries have uploaded 8,040 BA.2 sequences to GISAID since 17 November 2021. SUMMARY : The basics of the Omicron sub-variant, the BA.5, which is currently the majority in France: BA.5 is more contagious than BA.2 (January wave), which was itself more contagious than BA.1 and even more than Delta (variant 2021). This analysis shows you are up to 8 times more likely to end up in hospital as a result of COVID-19 if you are unvaccinated. The UK Health Security Agency (UKHSA) has identified 8 further cases of COVID-19 with mutations consistent with B.1.1.529 in England, in addition to the previous 5 confirmed cases of the SARS-CoV-2 variant known as B.1.1.529. 2. While BA.1 and BA.2 are similar, they are 20 mutations apart. We have now identified cases in the East Midlands, East of England, London and North West. Other countries that have uploaded more than 100 samples are India (530), Sweden (181), and Singapore (127). Genomes have now been uploaded from South Africa, Botswana and Hong Kong but the extent of spread is not yet determined. Telltale symptoms for Deltacron, Omicron, and the BA.2 Covid variants For example, there are still a small number of cases of other variants, such as Alpha, in the UK which would also result in S-gene dropout or there is a lower amount of virus present in the sample where S-gene dropout cannot be confirmed. Experts say BA.2 symptoms don't seem to be all that distinct from original Omicron (BA.1) or the immediately preceding Delta variant. UKHSA is updating its variant classification system to give a clearer indication of which variants have significant changes compared to the current dominant variant. A recombinant variant occurs when an individual becomes infected with 2 or more variants at the same time, resulting in a mixing of their genetic material within the patients body. As of 20 October, there were 15,120 cases of VUI-21OCT-01 confirmed by whole genome sequences in England since it was first detected in July. SARS-CoV-2 Omicron variant - Wikipedia And now, dizziness and fatigue are beginning to emerge as potential symptoms of the new sub-strain of Omicron, along with the original Covid symptoms. Everyone should complete a primary course as soon as possible for most this will be a first and second dose. The individual tested positive after travel to the UK and is linked to travel to Southern Africa. What We Know about Omicron's BA.2 Variant So Far The UK Health Security Agency (UKHSA) has released variant technical briefing 41. There is further data showing that effectiveness against symptomatic disease is significantly lower compared to the Delta variant, and wanes more quickly. UKHSA, in partnership with scientific bodies across the globe, is constantly monitoring the status of SARS-CoV-2 variants as they emerge and develop worldwide. Of these, XD and XF are recombinants of Delta and Omicron BA.1, while XE is a recombinant of Omicron BA.1 and BA.2. Initial data suggests that LFDs are as likely to detect Omicron as other variants including Delta, which has been the dominant variant in the UK from May to December 2021. The Omicron BA.2 subvariant is fast becoming the dominant strain of COVID-19, with symptoms similar to previous strains of the virus. Thats why its critical that anyone with COVID-19 symptoms isolates and gets a PCR test immediately. Whilst there are insufficient data to quantify either vaccine effectiveness or risk of reinfection in the UK exactly, the observed growth, case distribution and early analyses in both South Africa and the UK are consistent with some loss of immune protection against infection. A booster dose for everyone over 18 years is now recommended and will be available at a minimum of 3 months from your last primary course jab. They are our best defence and we have turbocharged our rollout programme inviting 7 million more people over the age of 40 to get their booster jab so even more people get protection from this disease. You have rejected additional cookies. We should all continue to test regularly with LFDs and take a PCR test if symptoms develop. A growth rate potentially compatible with the eventual replacement of the current dominant variant. This is not an unusual occurrence and several recombinant SARS-CoV-2 variants have been identified over the course of the pandemic. Work is underway to identify any links to travel. We continue to monitor all recombinants closely, routinely through our world-leading genomic surveillance and sequencing capability. Where individuals are identified as being a possible or probable case of Omicron, their close contacts will be contacted and advised they are required to isolate for 10 days, regardless of whether they have been vaccinated or received a negative COVID-19 test result. A separate UK study also found higher transmissibility for BA.2 compared to BA.1. Aside from all of the usual COVID symptoms, like a dry cough, a scratchy throat, fatigue, and muscle aches, the Stealth variant is thought to cause a few other distinct issues. Due to the early nature of the findings, all estimates are subject to significant uncertainty and are subject to change. 8 Research published in April 2022 in The Lancet also found. Previous variants of concern which no longer meet the criteria will be redesignated. Evidence continues to show that Omicron is transmitting more rapidly than the dominant Delta variant. As with any other coronavirus (COVID-19) variant, the vast majority do not confer any advantage to the virus and die out relatively quickly. COVID-19 variants identified in the UK - latest updates - GOV.UK The UK Health Security Agency (UKHSA) has published a new variant technical briefing describing ongoing work on the Omicron variant. However, it should serve as objective evidence that this pandemic is not over. You can change your cookie settings at any time. UKHSA will continue to designate new variants, and these will receive a variant number (in the format V-date-number). After 2 doses, vaccine effectiveness was 9% and 13% respectively for BA.1 and BA.2, after 25+ weeks. Delta and Omicron Cases are being eclipsed by BA2 Variant rapidly. However, any stay in hospital for a child is too long if youre a parent and its important we all take precautions to avoid the spread of infection. Spector shared a list of symptom prevalence from people who had tested positive for COVID, most of whom were estimated to have caught BA.2, he said. Omicron Infection Timeline: Exposure to Immunity - Health The individuals that have tested positive are not connected to each other and are not linked to the previously confirmed cases. The updated risk assessment includes indicators for infection severity in both adults and children. A preliminary assessment by UKHSA did not find a difference in vaccine effectiveness, although it said there was no data yet available on severity. UKHSAis carrying out targeted testing at locations where the positive cases were likely to be infectious. The BA.2 subvariant of the COVID-19 virus is now the dominant coronavirus strain in the world, and while health officials are saying the subvariant acts like the original omicron version of the . Studies have already shown that this virus travels to different parts of the body, therefore gut-related issues are. Updated analysisshows theadditional incremental benefit from each vaccine exposureincluding for boosters, even in those who have had prior infection. But at that point the sub-variant still appeared to account for less than one in 20 cases. The individuals that have tested positive and their contacts are all isolating. Until the week beginning 23 November 2021, the weekly count of cases with SGTF was routinely less than 150, making up less than 0.1% of all cases. One study has suggested that it may be difficult to identify this variant . New 'stealth' Omicron subvariant presents two NEW symptoms, experts BA.2, also known as "stealth omicron," is considered a subvariant of omicron. This new mutation dubbed BA.2.75 is concerning scientists because it appears to spread fast, bypassing the protection offered by COVID-19 vaccines and immunity from previous infection, the Associated Press reported Monday. Data by variant related to intensive care unit admissions is presented and an analysis into the effect of the recent surge of Omicron cases in care homes is also available in the latest technical briefing. As we learn to live safely with COVID-19, there are actions we can all take to help reduce the risk of catching COVID-19 and passing it on to others. Stealth BA.2 Omicron Variant Can Reinfect People Who Had BA - Newsweek Previous updates were published by Public Health England. A second BTN162b2 booster was previously found to be 52% and 72% effective in preventing Omicron BA.1 infection and hospitalization, respectively, in adults 60 years. UKHSA continues to examine all available data relating to SARS-CoV-2 variants in the UK and abroad. People aged 75 and over remain at particular risk of severe disease if they are not up to date with their vaccinations. 3 Common Omicron BA.2.12.1 COVID-19 Subvariant Symptoms - Good Housekeeping Please make sure you follow all the available guidance. 34 Subsequent studies that were performed in periods when a mix of BA.1, BA.2, BA.4, and BA.5 viruses circulated have reported low effectiveness of a second booster against . Early data shows that young children who are hospitalised experience mild illness and are discharged after short stays in hospital. The BA.2 subvariant has been referred to as stealth Omicron because it contains genetic mutations that can make it harder to distinguish from the . If you have symptoms take a PCR test and isolate at home until you receive a negative result. Here is what we know about it. New Omicron BA.2 variant symptoms - What we know so far - Yahoo Life UK What are the symptoms of BA.2? UKHSA analysis shows that the risk of hospital admission for an identified case with Omicron is reduced compared to a case of Delta. According to the CDC, the Omicron variant spreads more easily than the original SARS-CoV-2 virus and the Delta variant. I urge you to come forward as soon as youre eligible to help keep yourself and your loved ones safe. These include a high temperature, a new. There can be several reasons for growth advantage, but in the case of BA.4 and BA.5, laboratory data suggests a degree of immune escape which is likely to contribute. Experts say BA.2 has extensive mutations and is about 40 percent more infectious than the original Omicron variant. Omicron BA.5 variant | COVID-19 | UC Davis Health UKHSA designated variant B.1.1.529 as a variant under investigation (VUI) on Thursday 25 November. Studies of contacts show that Omicron is transmitting more effectively than Delta. Thats why its critical that anyone with COVID-19 symptoms isolates and gets a PCR test immediately. Runny nose (especially in combination with loss of smell) A runny nose is a universal sign of cold, flu and now COVID-19. The designation was made on the basis of increasing numbers of BA.2 sequences identified both domestically and internationally. Working from home where possible, consistently wearing masks in crowded or enclosed spaces, washing your hands regularly and isolating and getting tested if you feel unwell are also vitally important in reducing the impact of COVID-19 this winter. According to the COVID Symptom Study, the five most common symptoms are the same: Runny nose, headache, fatigue, sneezing and sore throat. The pace of sharing sequences by India is very slow, median days from collection to deposition is 69 days according to GISAID. Its not too late to catch up if youve missed boosters, or even first doses so please take your recommended vaccines. Increased case detection through focused contact tracing has led to more cases of the Omicron variant being identified and confirmed, as we have seen in other countries globally. We have now identified cases in the East Midlands, East of England, London, North East, North West, South East, South West and West Midlands. Vaccination remains our best defence against future COVID-19 waves, so it is still as important as ever that people come take up all the doses for which they are eligible as soon as possible. This includes analysing live samples of the new variant in our laboratories to investigate properties such as response to current vaccines. An ad blocker has likely prevented this video content from loading. The latest number of COVID-19 cases with mutations consistent with B.1.1.529 in England are published on UKHSAs social media channels. All 3 subvariants have spike protein mutations of L452 and elude immunity from prior BA1 infection. The rapid spread of Omicron BA.2: What studies say - Medical News Today 'Stealth' Omicron: What You Need To Know About The BA.2 Virus | Glamour UK The odds of reporting long COVID symptoms four to eight weeks after a first COVID-19 infection were 21.8% higher after an infection compatible with Omicron BA.2 than Omicron BA.1 among adults who were triple-vaccinated when infected; this was after adjusting for socio-demographic characteristics and time since last COVID-19 vaccination. Ba.2 Omicron Variant Symptoms - SymptomsTalk.net Latest updates on SARS-CoV-2 variants detected in the UK. UKHSA is carrying out targeted testing at locations where the positive cases were likely to be infectious. Because of a quirk in how it shows up in test results, we can see the numbers of suspected BA.2 doubled in the week up to 24 January. But it is worth noting that Denmark has seen similar trends in terms of hospital admissions and intensive care as the UK has, suggesting BA.2 does not mark a sea-change in severity. BA.2.75.2 as a new variant but singled it out as an . As set out last week, the effectiveness of all vaccines against symptomatic infection continues to be lower in all periods against Omicron compared to Delta. Typical meningitis symptoms include neck stiffness or pain, numbness, tingling, and sensitivity to light. Immunogenicity and Reactogenicity of the Beta-variant Recombinant XBB.1.5 remains at very low prevalence in the UK, so estimates of growth are highly uncertain. Omicron BA.2.75, the variant derived from the BA.2 lineage which was identified internationally earlier this month, has now been categorised as a separate variant and given the designation V-22JUL-01. This will include analysing live samples of the new variant in our laboratories to investigate properties such as response to current vaccines. BA.2 has been under close . We should all continue to test regularly with LFDs [lateral flow devices] and take a PCR [polymerase chain reaction] test if symptoms develop.". The UK Health Security Agency (UKHSA) has announced the emerging SARS-CoV-2 variant known as B.1.1.529 as a variant under investigation (VUI). Get vaccinated and, for those eligible, come forward for your third or booster dose as appropriate as soon as you are called. Professor Susan Hopkins, Chief Medical Advisor, UKHSA said: Recombinant variants are not an unusual occurrence, particularly when there are several variants in circulation, and several have been identified over the course of the pandemic to date. Surefire Signs Omicron is in Your Body Eat This Not That This new UKHSA data on Omicron is promising while 2 doses of the vaccine arent enough, we know boosters offer significant protection against the variant and early evidence suggests this strain may be less severe than Delta. What are the five main Omicron symptoms? - Open Access Government Prior infection is 44% effective at preventing future infection, increasing to 71% with 3 doses of the vaccine. While prevalence remains high, make sure to wear your mask in indoor settings and take a lateral flow test before meeting others. . UKHSA is constantly monitoring the situation and working to understand the implications for public health. It remains vital that anyone with COVID-19 symptoms isolates and gets aPCRtest immediately. That's because there could be cross-immunity - an infection with BA.1 could offer some protection against BA.2. Currently, approximately half of all tests conducted in the UK are able to detect SGTF. We expect the vaccines to show higher protection against the serious complications of COVID-19, so if you havent yet had your first 2 doses please book an appointment straight away. While specific symptoms to BA.2 are not yet available, the NHS lists the main symptoms for Covid-19 as: a high temperature a new, continuous cough a. Covid: Rise in UK infections driven by BA.2 Omicron variant BA.2, also coined as the "stealth" variant, is a relative of Omicron's original variant, BA.1, which tore through the Australian community over Christmas and the New Year period. UKHSAs latest analysis suggests that Omicron BA.5 is growing 35.1% faster than Omicron BA.2, while Omicron BA.4 is growing approximately 19.1% faster. It is testament to the diligence and scientific expertise of my colleagues at UKHSA, and the genomic sequencing capacity developed through the pandemic, that this new variant has been identified and analysed so quickly.
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