A runny nose, gastrointestinal issues, headache and a skin rash are other common signs and symptoms. 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. A runny nose, gastrointestinal. 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. moderate COVID-19 symptoms who are at high risk of . Of those patients admitted to hospital,17had received a booster vaccine, 74 people had 2 doses and 27 people were not vaccinated. 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). Studies have already shown that this virus travels to different parts of the body, therefore gut-related issues are. And in England, more than 1,000 confirmed cases of BA.2 have been identified, according to the UK Health Security Agency (UKHSA). A growth rate potentially compatible with the eventual replacement of the current dominant variant. Neutralisation studies are currently being undertaken at the University of Oxford. Studies have also shown that Omicron infects and multiplies in the upper airways 70 times faster than the previous Delta variant. BA.2.75.2 as a new variant but singled it out as an . This is not an unusual occurrence and several recombinant SARS-CoV-2 variants have been identified over the course of the pandemic. Susan Hopkins, Chief Medical Adviser at UKHSA, said: The latest set of analysis is in keeping with the encouraging signs we have already seen. BA.2 has been under close . There have been recent reports of people who experience symptoms like those of viral meningitis, an inflammation of the brain and spinal cord membranes. Symptoms of BA.2 appear to largely mirror those of the original version of the omicron variant: an upper respiratory illness that causes sore throat, cough, congestion, headache and fatigue. The total number of confirmed cases in England is now 104. There is currently insufficient evidence to draw conclusions about growth advantage or other properties of this variant. Wear a mask in crowded spaces and, when meeting people indoors, open windows and doors to ventilate the room. 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. Data for Scotland, Wales and Northern Ireland is not included in the UKHSA Technical Briefing. BA.2 continues to demonstrate a substantial growth advantage. More recent data on Omicron cases is published regularly here. 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. UKHSA is carrying out targeted testing at locations where the positive cases were likely to be infectious. Previous updates were published by Public Health England. UKHSAs latest National flu and COVID-19 surveillance report indicates that the increase in COVID-19 case rates and hospitalisations continues to show signs of slowing. UKHSA is constantly monitoring the situation and working to understand the implications for public health. 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. The most common omicron-related symptoms are: Cough. The UK Health Security Agency (UKHSA) is reminding people to ensure their COVID-19 vaccinations are up to date and to continue following COVID-safe behaviours, as latest technical data indicates BA.4 and BA.5 have become dominant in the UK and are driving the recent increase in infections. You will not always know whether someone you come into contact with is at higher risk of becoming seriously ill from respiratory infections, including COVID-19. 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. The latest number of COVID-19 cases with mutations consistent with B.1.1.529 in England are published on UKHSAs social media channels. It is the best defence we have against this highly transmissible new variant. 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). Any variants showing evidence of spread are rapidly assessed. UKHSA will continue to monitor the situation closely as a matter of routine, as we do all data relating to SARS-CoV-2 variants both in the UK and internationally. 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. What's the least amount of exercise we can get away with? 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. 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. Omicron BA.2 Variant Severity The symptoms of omicron BA.2.75 are mostly flu-like and may last more than 4-5 days. As is routine for any new variants under investigation, UKHSAis carrying out laboratory and epidemiological investigations to better understand the properties of this variant. Vaccination is critical to help us bolster our defences against this new variant please get your first, second, third or booster jab without delay. Neither have currently been designated as variants of concern. Added breakdown of cases by local authority to latest update. 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. [92] Reactions [ edit] Vaccine producers [ edit] The UK Health Security Agency (UKHSA) has released variant technical briefing 41. UKHSA Chief Medical Advisor, Dr Susan Hopkins said: It is increasingly evident that Omicron is highly infectious and there is emerging laboratory and early clinical evidence to suggest that both vaccine-acquired and naturally acquired immunity against infection is reduced for this variant. Among those who had received 2 doses of Pfizer or Moderna, effectiveness dropped from around 65 to 70% down to around 10% by 20 weeks after the seconddose. These changes will take effect as of 1 April 2022 and will be reflected in full in future technical briefings. The individuals who have tested positive and their contacts are all isolating. In the age group of 20-50 years, significant severity is not expected. A detrimental change in biological properties (changes in transmissibility, severity or immune evasion) compared to the current dominant variant. Read about our approach to external linking. Night sweats Scratchy throat Dry cough Mild muscle aches In data published by the UKHSA on January 14, they found that NHS test and trace data revealed a loss of smell or taste was reported less. 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. 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. The UK Health Security Agency (UKHSA) has identified 7 further cases of COVID-19 with mutations consistent with B.1.1.529 in England, in addition to the previous 22 confirmed cases of the SARS-CoV-2 variant known as B.1.1.529. The v The BA.2 subvariant of Omicron, or the "stealth" variant, has been outcompeting the previously dominant BA.1 subvariant in several countries. 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 . 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. According to the CDC, the Omicron variant spreads more easily than the original SARS-CoV-2 virus and the Delta variant. These groups have been prioritised for booster doses since the start of the rollout in September to increase their protection. It has since swept the globe, eventually vanquishing other variants including delta. 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 is routine for any new variants under investigation,UKHSAis carrying out laboratory and epidemiological investigations to better understand the characteristics of this variant. 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. Early analyses suggest an increased growth rate compared to BA.1, however, growth rates have a low level of certainty early in the emergence of a variant and further analysis is needed. Since the middle of February, this growth rate has settled at approximately 75% higher than other circulating Omicron lineages in England. What are the symptoms of 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. 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. The UK Health Security Agency (UKHSA) has released a new variant technical briefing detailing updated analysis of epidemiological and genomic data relating to SARS-CoV-2 variants currently circulating in the UK, including the XBB.1.5 variant which has been increasing in the US in recent months.
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