Please take up this offer as soon as you are eligible to protect yourself, your families and your communities. In England, the infection rate increased in those aged 25 years to 49 years and those aged 70 years and over in the week ending 21 February 2023. Wear a mask in crowded spaces and, when meeting people indoors, open windows and doors to ventilate the room. Where individuals are identified as being a possible or probable case, their close contacts will be contacted and advised to isolate for 10 days and to take a test. This sub-lineage, which was designated by Pangolin on 6 December 2021, does not have the spike gene deletion at 69-70 that causes S-gene target failure (SGTF), which has previously been used as a proxy to detect cases of Omicron. 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. Please take up this offer as soon as you are eligible to protect yourself, your families and your communities. UKHSA will continue to designate new variants, and these will receive a variant number (in the format V-date-number). So far there is not enough evidence to draw conclusions about transmissibility, severity or vaccine effectiveness. Top of the list with a prevalence of 80. This is still a very small number of cases but is being investigated carefully to understand whether it is related to travel, any other variant or whether there is evidence of spread of Omicron beginning in the community. A separate UK study also found higher transmissibility for BA.2 compared to BA.1. The latest data confirmed that among those who had received 2 doses of AstraZeneca, there was no effect against Omicron from 20 weeks after the second dose. A booster dose was associated with a 74% reduced risk of hospitalisation in the first 2 to 4 weeks after vaccination, with the figure dropping to 66% 10 weeks or more after this dose. These are potentially biologically significant mutations which may change the behaviour of the virus with regards to vaccines, treatments and transmissibility. 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. The risk of catching or passing on COVID-19 is greatest when someone who is infected is physically close to, or sharing an enclosed or poorly ventilated space with, other people. Based on the reports from doctors treating the Covid variant and patients battling. A preliminary assessment did not find evidence of a difference in vaccine effectiveness against symptomatic disease for BA.2 compared to BA.1. Since then, the Centers for Disease Control and Prevention (CDC) has classified two subvariants, BA.1.1 and BA.2. 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. Everyone should complete a primary course as soon as possible for most this will be a first and second dose. As with any other coronavirus (COVID-19) variant, the vast majority do not confer any advantage to the virus and die out relatively quickly. UKHSA analysis shows that the risk of hospital admission for an identified case with Omicron is reduced compared to a case of Delta. Whilst Omicron BA.4 and BA.5 are in the early stages of growth in the UK, analysis of the available data suggests that they are likely to have a growth advantage over the currently-dominant Omicron BA.2 variant. As with previous variants, experts believe vaccines will continue to be highly effective against severe illness, hospitalisation, and death. 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 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. UKHSA encourage everyone to continue to follow the most up-to date guidance. This is not an unusual occurrence and several recombinant SARS-CoV-2 variants have been identified over the course of the pandemic. Now more countries, particularly in Asia and Europe, are reporting an increase in cases driven by BA.2. Of those patients admitted to hospital,17had received a booster vaccine, 74 people had 2 doses and 27 people were not vaccinated. The UK Health Security Agency (UKHSA) has released variant technical briefing 50. Our data shows that LFD tests are similarly able to detect COVID-19 in individuals who have been exposed to Omicron as in those exposed to previous variants. 2. If you develop any symptoms, isolate immediately and get a PCR test. Our continued genomic surveillance allows us to further investigate variants that are growing within the UK. The individuals and their households have been told to self-isolate. Getting your booster jab remains the most effective way of protecting yourself and others from infection and severe disease. New sub-lineages within Delta continue to be identified. 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. There are simple things you can do in your daily life that will help reduce the spread of COVID-19 and other respiratory infections and protect those at highest risk. 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. Omicron has a deletion atposition69/70of the spike proteinwhich allows it to be tracked through S gene target failure(SGTF)in some PCR tests. 1 case has been identified in Wales. 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. We urge these people in particular to get up-to-date. The analysis shows that coronavirus (COVID-19) cases in the UK are primarily made up of BQ.1 and its sublineages, consistent with the UKHSA risk assessment published in October. Vaccine effectiveness (VE) against Omicron has again been updated in this weeks briefing. 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. ; BA.5 sometimes gives rise to more marked symptomssometimes with digestive symptoms . The UK Health Security Agency (UKHSA) has published its latest COVID-19 variant technical briefing. These include a high temperature, a new. 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. This increased to 63% for BA.1 and 70% for BA.2 at 2 weeks following a third vaccine. Other countries that have uploaded more than 100 samples are India (530), Sweden (181), and Singapore (127). The assessment suggests that Omicron is displaying a significant growth advantage over Delta, meaning that it is likely to outcompete Delta in the UK and become the dominant variant. According to the CDC, the Omicron variant spreads more easily than the original SARS-CoV-2 virus and the Delta variant. Apart from dizziness and fatigue, some other signs of BA.2 Omicron Variants include: Fever and body aches Loss of taste Nausea or Vomiting Abdominal pain Fever Extreme fatigue Coughing Sore throat Muscular fatigue Elevated heart rate Breathless in severe cases readmore End of Story There is insufficient data to make any assessment of protection against severe disease, or to assess the severity of illness caused by Omicron. There is evidence that protection against symptomatic disease wanes after the second dose of vaccine, and then improves after the booster. Please wear face coverings in line with government guidance, let in fresh air when mixing indoors and wash your hands regularly. This is to be expected and UKHSA is monitoring the situation closely. UKHSA has updated its stay at home guidance and non-household contacts guidance to reflect changes to self-isolation requirements for contacts of people who have been identified as a suspected or confirmed case of the Omicron variant of COVID-19. People aged 75 and over remain at particular risk of severe disease if they are not up to date with their vaccinations. The best way that you can protect yourself is to come forward for your first 2 doses of vaccine, or your booster jab and do everything you can to stop onward transmission of the infection. 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. 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 . Many people who have Omicron say it feels like a common cold, and here are the 8 early warning signs you need to look out for. 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. Prior infection is 44% effective at preventing future infection, increasing to 71% with 3 doses of the vaccine. Our data shows that getting the booster vaccine is more effective against this variant than 2 doses alone. 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. It is therefore vital that people continue to exercise caution in order to limit the transmission of the virus. Infection rate corrected to one million infections a day. A further 16 cases have been identified in Scotland, bringing the total in Scotland to 29. One of the most common symptoms of the Omicron subvariant BA.2 is nausea. 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. The data so far suggests an increase in overall reinfection rates, alongside an increase in first infections. The increasing prevalence of Omicron BA.4 and BA.5 is likely to be a factor in the recent increase in cases seen in the UK and elsewhere, though there is currently no evidence that Omicron BA.4 and BA.5 cause more severe illness than previous variants. Anewrisk assessment for OmicronVOC-21NOV-01 (B.1.1.529)has also been published and is available here. Studies of contacts show that Omicron is transmitting more effectively than Delta. 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 . Two major BA.2 variant symptoms include dizziness and fatigue, as I wrote for the Deseret News.
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