There is currently no data on the severity of BA.2. What is the Covid BA.2 variant? Symptoms of Omicron sub-variant The UK Health Security Agency (UKHSA) has released variant technical briefing 41. The Omicron variant sub-lineage known as BA.2 has been designated a variant under investigation ( VUI-22JAN-01) by the UK Health Security Agency (UKHSA). 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. We will continue to closely analyse all available biological, epidemiological and genomic evidence for any SARS-CoV-2 variant in the UK or internationally. The total number of confirmed cases in England is now 104. At this point it is not possible to determine where the sublineage may have originated. 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. A BA2 variant's symptoms are similar to those of Omicron. According to Denmark's Statens Serum Institut (SSI), BA.2 infections rose to account for about half of the country's reported Covid cases in January. Working alongside Cambridge University MRC Biostatistics unit, UKHSA analysed 528,176 Omicron cases and 573,012 Delta cases between 22 November and 26 December to assess the risk of hospitalisation in England after testing positive for Omicron. If you have any symptoms of a respiratory infection, and a high temperature or feel unwell, try to stay at home or away from others especially those who are elderly or vulnerable. There have been recent reports of people who experience symptoms like those of viral meningitis, an inflammation of the brain and spinal cord membranes. Work is underway to identify any links to travel to Southern Africa. The Omicron Variant of COVID-19 - WebMD BA.2 has an increased growth rate compared to BA.1 in all regions of England where there are enough cases to assess it. An estimated 78.7% of confirmed cases in England are BA.5 which was first identified in April and was designated as a Variant of Concern on 18 May. Download the data.xlsx. The population rate of people becoming infected with Omicron after having previously contracted COVID-19 has increased sharply. Omicron BA.2: The 'stealth' variant could cause more 'severe' disease "Looking at other countries where BA.2 is now overtaking, we're not seeing any higher bumps in hospitalisation than expected," the WHO's Dr Boris Pavlin says. 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. Please wear face coverings in line with government guidance, let in fresh air when mixing indoors and wash your hands regularly. However, vaccinated people are still less likely to get infected than unvaccinated individuals, and they are also less likely to pass it on. This is very encouraging. Based on the CDC's genomic surveillance, the BA.2 or stealth Omicron subvariant is responsible for most new SARS-CoV-2 infections in the U.S. BA.2 is a subvariant of the original SARS-CoV-2 Omicron variant (B.1.1.529), along with BA.1.1 and BA.3. It is not unexpected to see new lineages and continued investigation is a normal part of the surveillance of an infectious disease. It will take only 2 minutes to fill in. The first genomes of this variant were uploaded to the international GISAID database on 22 November. None of these cases are known to have been hospitalised or died. In this analysis, the risk of hospitalisation is lower for Omicron cases with symptomatic or asymptomatic infection after 2 and 3 doses of vaccine, with an 81% (95% confidence interval 77 to 85%) reduction in the risk of hospitalisation after 3 doses compared to unvaccinated Omicron cases. As viruses mutate into new variants, they sometimes split or branch off into sub-lineages. 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. Francois Balloux, Professor of Computational Systems Biology and director of the UCL Genetics Institute, said that BA.1 and BA.2 "can be considered as two epidemiologically largely equivalent sub-lineages of Omicron". Dr Jenny Harries, Chief Executive of UKHSA, said: We are continuing our efforts to understand the effect of this variant on transmissibility, severe disease, mortality, antibody response and vaccine efficacy. What to know about omicron BA.2 variant symptoms - NBC News What experts know about COVID-19 omicron subvariant BA.2 The proportion of test results displaying SGTF has been very low in recent months but an increase has been observed in the past week. The Top Symptoms of the BA.2 Variant, According to Doctors - Parade A further case has been identified in Scotland, bringing the total to 10. BA.2 omicron symptoms According to the CDC, the symptoms of Covid-19, including BA.2, are: Fever or chills Cough Shortness of breath or difficulty breathing Fatigue Muscle or body. "We must remain vigilant and take up vaccinations. COVID-19 has not gone away, so it is also vitally important that people continue to follow the guidance. BA.2 attacking abdomen instead of lungs. Our continued genomic surveillance allows us to further investigate variants that are growing within the UK. And even if it does become the dominant version of Omicron, it may not actually alter the trajectory of the pandemic in countries that have seen a big wave of BA.1. You can change your cookie settings at any time. What is Omicron sub-variant BA.2? All we know about the symptoms and How Long Do Omicron BA.2 Symptoms Last? - Verywell Health BA.2 version of omicron is rising in the U.S., but experts remain There are thought to be subtle differences in the symptoms that BA. In India, BA.2 is rapidly replacing the Delta and Omicron BA.1 variants of Covid, BA.2 was first detected in the Philippines, About half of new cases in Denmark are caused by BA.2, AOC under investigation for Met Gala dress, Mother who killed her five children euthanised, Alex Murdaugh jailed for life for double murder, The children left behind in Cuba's exodus, Zoom boss Greg Tomb fired without cause, US sues Exxon over nooses found at Louisiana plant. 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. The symptoms of omicron BA.2.75 are mostly flu-like and may last more than 4-5 days. One study has suggested that it may be difficult to identify this variant . And in England, more than 1,000 confirmed cases of BA.2 have been identified, according to the UK Health Security Agency (UKHSA). 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. Cases are currently very high in the UK, and even a relatively low proportion requiring hospitalisation could result in a significant number of people becoming seriously ill. A preliminary assessment by UKHSA did not find a difference in vaccine effectiveness, although it said there was no data yet available on severity. We have also learnt that BA.2 has a slightly higher secondary attack rate than BA.1 in households. Everybody who is contacted or has symptoms should take aPCRtest as soon as possible, even if they have received a positive COVID-19PCRtest within the last 90 days. Two-thirds with Omicron say they had Covid before. The guidance on vaccination is changing to help all of us bolster our defences in the face of this new variant. What We Know about Omicron's BA.2 Variant So Far No cases have been identified in the UK. This suggests that BA.5 is likely to become the dominant COVID-19 variant in the UK. As previously published, data continues to show vaccine effectiveness against hospitalisation for Omicron remains high. Currently there are 18 UK samples in GISAID, out of a global total of 1,086; 639 samples have been uploaded from Singapore, and it is thought that XBB may be a factor in the recent spike in cases there. However, it should serve as objective evidence that this pandemic is not over. The total number of confirmed cases in England is now 5. We use some essential cookies to make this website work. A growth rate potentially compatible with the eventual replacement of the current dominant variant. Thats why its critical that anyone with COVID-19 symptoms isolates and gets a PCR test immediately. 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. As we cautiously return to Plan A, I encourage you to give yourself and your loved ones the best protection possible and Get Boosted Now. 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. As part of UKHSAs routine genomic surveillance, approximately 15 to 20% of all positive PCR tests are also sent for sequencing. If you have any symptoms, take a test. UKHSA is monitoring this closely. News stories, speeches, letters and notices, Reports, analysis and official statistics, Data, Freedom of Information releases and corporate reports. 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. This is to be expected and UKHSA is monitoring the situation closely. UKHSAis carrying out targeted testing at locations where the positive cases were likely to be infectious. B.1.1.529 has a large number of mutations in the gene coding for the spike protein, and also in other parts of the viral genome. 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). But the preliminary assessment found no evidence that vaccines would be any less effective against symptomatic disease for either sub-variant. BA.2.75.2 as a new variant but singled it out as an . Everyone should complete a primary course as soon as possible for most this will be a first and second dose. So how worried should we be about this emerging variant? Vaccine efficacy analysis continues to show lower effectiveness for symptomatic Omicron disease. According to Boden-Albala said, those symptoms may include the following: Fever Chills Fatigue Cough Body aches Shortness of breath Sore throat Additionally, some people may report upper. This analysis is not an assessment of hospital severity, which will take further time to assess. In a lot of ways, it's a bad cold, a lot of respiratory symptoms, stuffy nose, coughing, body aches and fatigue," said Dr. Dennis Cunningham, the system medical director of infection control and. Vaccine effectiveness against severe disease from Omicron is not yet known but is expected to be significantly higher than protection against symptomatic disease. Current guidance from NHS England is that the main symptoms of Covid continue to be a high temperature, a new continuous cough, a loss or change to your sense. Its critical that anyone with COVID-19 symptoms isolates and gets a PCR test immediately. There is no data to suggest that BA.2 leads to more severe disease than previous Omicron sub-variants. 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. Get vaccinated and, for those eligible, come forward for your third or booster dose as appropriate as soon as you are called. We should all continue to test regularly with LFDs and take a PCR test if symptoms develop. Technical Briefing 34 contains further analysis on symptom comparison on Omicron and Delta. UKHSA continues to monitor and study variants of SARS-CoV-2 closely and is working with academic partners to rapidly assess the significance of the lineages BA.4 and BA.5. Dr Jenny Harries, Chief Executive of the UK Health Security Agency, said: Viruses mutate often and at random, and it is not unexpected that new variants will continue to arise as the pandemic goes on, particularly while the case rate remains high. One dose of any vaccine was associated with a 35% reduced risk of hospitalisation among symptomatic cases with the Omicron variant, 2 doses with a 67% reduction up to 24 weeks after the seconddose and a 51% reduced risk 25 or more weeks after the seconddose. Data continues to show COVID-19 poses a very low health risk to children and infants. Our continued genomic surveillance allows us to detect them and assess whether they are significant. Continue to exercise caution. UKHSA has also this week published further vaccine effectiveness data against hospitalisation following a booster dose. Of those with Omicron, 9.5% have had COVID-19 before, which is likely to be a substantial underestimate of the proportion of reinfections, as many prior infections will have been asymptomatic and not picked up by the analysis. The BA.2 subvariant of Omicron, or the "stealth" variant, has been outcompeting the previously dominant BA.1 subvariant in several countries. Neutralisation studies are currently being undertaken at the University of Oxford. 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. The analysis included very small numbers of cases as only a few people in the UK currently have this variant, meaning this data should be interpreted with caution until more cases have been studied. Vaccination is critical to help us bolster our defences against this new variant so please get your first, second, third or booster jab as soon as you are eligible to protect yourself, your families and your communities. 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. Please take up this offer as soon as you are eligible to protect yourself, your families and your communities. Our exceptional vaccine rollout means the number of people severely affected by COVID-19 is low, and the UKs innovation and research has discovered life-saving treatments for those most at risk from COVID-19. In a subgroup analysis of 4,800 people who were triple-vaccinated and infected with an omicron variant, the authors found that people with BA.2 were 64 percent more likely than BA.1-infected . Dr Meera Chand, COVID-19 Incident Director at UKHSA, said: It is the nature of viruses to evolve and mutate, so its to be expected that we will continue to see new variants emerge as the pandemic goes on. People infected with Omicron are also less likely to experience fever or loss of taste and smell. Omicron symptoms: What we know about illness caused by the new subvariants Case rates remain high throughout the UK and we must remain vigilant and take up vaccinations. Studiesof households and contactshave found that there is a higher risk of transmission to contacts from an Omicron case, when compared to Delta. Previous updates were published by Public Health England. Omicron Sub-Variant BA.2: Symptoms, Differences, And Chances Of BA.3 shares most of its mutations with BA.1 and BA.2 except for one. Delta remains the predominant variantin England, accounting for over 99% of all COVID-19 cases. It contains epidemiological data and updated analysis of COVID-19 variants currently circulating in the UK. Due to the early nature of the findings, all estimates are subject to significant uncertainty and are subject to change. Please take up this offer as soon as you are invited to protect yourself, your families and your communities. Covid-19| 2 New Symptoms of Omicron Variant BA. 2 That Should Not be A further 16 cases have been identified in Scotland, bringing the total in Scotland to 29. Genome sequencing among the states is not always fair. pic.twitter.com/ESQupxUet4. The v New Omicron Subvariant Is Spreading in India, U.S. I urge you to come forward as soon as youre eligible to help keep yourself and your loved ones safe. Read about our approach to external linking. 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. Things you can choose to do are: The UK Health Security Agency (UKHSA) has elevated the classification of the COVID-19 variants Omicron BA.4 and Omicron BA.5 to variants of concern (VOCs) on the basis of observed growth. They could be strangers (for example people you sit next to on public transport) or people you may have regular contact with (for example friends and work colleagues). Omicron soon began branching off into a number of subvariants: BA.2 took off in the spring, and BA.5 came to dominate towards the end of the summer. BA2 Variant is overtaking Delta and Omicron Cases at rapid speed. 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. Its not too late to catch up if youve missed boosters, or even first doses so please take your recommended vaccines. Omicron BA.2 COVID Variant Symptoms Explained As New U.S - Newsweek Omicron BA.2 Variant Symptoms, Severity, Precautions, Mutation So far, there have been 717 V-22OCT-01 sequences uploaded from the UK to the international GISAID database. There is currently no evidence of community transmission within the UK. While on one hand, this statement gives a ray of hope that BA.2 sub variant of Omicron which was thought to be severe is mild as the BA.1 subvariant is, but on the other hand with the report of . There is insufficient data to make any assessment of protection against severe disease, or to assess the severity of illness caused by Omicron. According to the ZOE study - conducted across Omicron and Delta waves for comparison - there are five key symptoms of the Omicron variant. All age groups are affected, including the 75s and over, who are due a spring booster jab to top up protection. It was designated a variant of concern (VOC) on Saturday 27 November. UKHSAreleases weekly updates on the number of confirmed new cases of variants of concern and variants under investigation identified in the UK. Runny or congested nose Feeling fatigued Headache New, continuous cough Shortness of breath or difficulty breathing Muscle or body aches New loss of a sense of taste or smell Sore throat Nausea or vomiting Diarrhoea They advise that if you develop one or more of these symptoms you should take a Covid test as soon as possible. We have seen a rise in hospital admissions in line with community infections but vaccinations are continuing to keep ICU admissions and deaths at low levels. BA.1 accounts for most of the cases. The worst symptom is a "throat on fire," said University of California, San Francisco's Dr. Peter Chin-Hong. Omicron has branched into three lineages, explains Thomas Russo, M.D., professor and chief of infectious disease at the University at Buffalo in New York: BA.1, BA.2, and BA.3. Data on this wont be available for several weeks. BA.2 Symptoms Not That Different From Omicron, Delta. Omicron Subvariant - BA.2.75 | Narayana Health Fatigue. Six cases of the SARS-CoV-2 variant known as B.1.1.529 have also been identified in Scotland, with 4 cases in the Lanarkshire area and 2 in the Greater Glasgow and Clyde area.
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