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The Omicron variant of coronavirus is less likely to cause long Covid than previous variants, according to the first peer-reviewed study of its kind from the UK. Researchers at King's College London, using data from nearly 100,000 people who logged their Covid symptoms via an app, found the odds of developing long Covid after infection were 20 per cent to 50 per cent lower during the Omicron wave in the UK compared to Delta. The figure varied depending on the patient's age and the timing of their last vaccination. Long Covid, which includes prolonged symptoms ranging from fatigue to 'brain fog', can be debilitating and continue for weeks or months. It is increasingly being recognised as a public health problem, and researchers have been racing to find out if Omicron presents as big a risk of long Covid as previously dominant variants. The study from King's is believed to be the first academic research to show Omicron does not present as great a risk of long Covid, but that does not mean long Covid patient numbers are dropping, the team said. While the risk of long Covid was lower during Omicron, more people were infected, so the absolute number now suffering is higher. "It's good news, but please don't decommission any of your long Covid services," lead researcher Dr Claire Steves said, appealing to health-service providers.

The National Health Service will begin its autumn Covid vaccine program next week, a month earlier than planned in response to the spread of a new variant dubbed Pirola. Covid vaccines will be administered to care home residents and housebound individuals from Monday onwards, while over-65s and other vulnerable groups will receive their appointments the week after. On Aug. 30, NHS England shifted the autumn vaccination drive to start on September 11 in response to the new Covid-19 variant, BA.2.86, detected on August 18. The primary groups can book through a national system upon receiving an invitation from the NHS. Some people may get an earlier call from their GP, and a few have already scheduled Covid vaccinations alongside their flu jabs. The NHS will begin inviting other eligible groups from Sept. 18. However, it is important to note that not everyone will receive a call at the same time. These groups will include individuals aged 65 and over, those aged six months to 64 years in a clinical risk category, frontline health and social care workers, and individuals aged 12 to 64 who are carers or household contacts of those with immunosuppression.

The National Institute for Health and Care Excellence (NICE) has issued draft guidance on 'Evusheld' which is not recommended for vulnerable adult with high risk of severe Covid-19 on Thursday (16 February). The draft guidance is open for public consultation until 9 March 2023. The committee will consider any comments received at a meeting currently due to take place on 4 April 2023. It comes after last month's decision by the US drug regulator to withdraw its emergency use authorisation for Evusheld as a preventative treatment for Covid-19, which said there was insufficient evidence that Evusheld is effective against the dominant variants of Covid-19 in the US. NICE's independent appraisal committee has reached the same conclusion having considered evidence which shows Evusheld is unlikely to prevent infection with most of the variants circulating in the UK now and in the near future. It has also announced that it is developing a new review process to update recommendations on the cost-effectiveness of Covid-19 treatments so they can be made available more quickly to patients if they show promise against new variants and are found to be cost-effective.

The Medicines and Healthcare products Regulatory Agency (MHRA) has approved a second "bivalent" vaccine as a Covid-19 booster. The updated booster vaccine made by Pfizer/BioNTech, targeting two coronavirus variants, has been approved for use in individuals aged 12 years and above. In each dose of the booster vaccine, 'Comirnaty bivalent Original/Omicron', half of the vaccine (15 micrograms) targets the original virus strain and the other half (15 micrograms) targets Omicron (BA.1). Dr June Raine, MHRA chief executive said: "I am pleased to announce that we now have a second approved vaccine for the UK Autumn booster programme. The clinical trial of the Pfizer/BioNTech bivalent vaccine showed a strong immune response against the Omicron BA.1 variant as well as the original strain. Bivalent vaccines are helping us to meet the challenge of an ever-evolving virus, to help protect people against Covid-19 variants. We have in place a comprehensive safety surveillance strategy for all UK-approved Covid-19 vaccines, and this will include the updated booster we approved today."

Two new subvariants of Omicron - BA.4 and BA.5 - are spreading much faster than other corovanirus variants in Europe, which could lead to more hospitalisations and deaths as they become dominant, the EU's disease prevention agency said on Monday (June 13). Most EU countries have so far detected low rates of the two subgroups. But in countries where the proportion has risen - such as Portugal, where BA.5 accounted for 87 per cent of cases by May 30 - there have been surges in overall cases, according to the European Centre for Disease Prevention and Control (ECDC). The two sublineages were added to the World Health Organization's monitoring list in March and have also been designated as variants of concern by the ECDC. Variants BA.4 and BA.5 do not appear to carry a higher risk of severe disease than other forms of Omicron.But an increase in case numbers from higher transmission rates risks leading to an increase in hospitalisations and deaths, the agency said. "The growth advantage reported for BA.4 and BA.5 suggest that these variants will become dominant," ECDC said in a statement on its website.

The World Health Organization says it is tracking a few dozen cases of two new sub-variants of the highly transmissible Omicron strain of the coronavirus to assess whether they are more infectious or dangerous. It has added BA.4 and BA.5, sister variants of the original BA.1 Omicron variant, to its list for monitoring. It is already tracking BA.1 and BA.2 - now globally dominant - as well as BA.1.1 and BA.3. The WHO said on Monday (April 11) it had begun tracking them because of their "additional mutations that need to be further studied to understand their impact on immune escape potential". Viruses mutate all the time but only some mutations affect their ability to spread or evade prior immunity from vaccination or infection, or the severity of disease they cause. For instance, BA.2 now represents nearly 94% of all sequenced cases and is more transmissible than its siblings, but the evidence so far suggests it is no more likely to cause severe disease.

Britain has started counting possible Covid-19 reinfections in its daily coronavirus data, changing its approach to reflect the increased number of people catching the disease for a second time as the Omicron variant predominates. The UK Health Security Agency (UKHSA) added around 840,000 cases to the cumulative total, taking it to 17.3 million coronavirus infections reported. Britain's daily Covid statistics previously would only count people who had tested positive for the first time to avoid double-counting people who had received multiple positive test results for the same infection. However, with variants such as Omicron leading to an increase in reinfections, the UKHSA said it would change its method to treat positive tests as separate infections if there was at least 90 days between test results. The change took effect on Monday (January 31). "Reinfection remained at very low levels until the start of the Omicron wave. It is right that our daily reporting processes reflect how the virus has changed," said Steven Riley, UKHSA's Director General of Data and Analytics.

Deviating from the initial schedule to kick off the flu and Covid-19 vaccination campaigns in October, the NHS England has announced that the autumn vaccination drive will commence sooner than expected in England, starting on September 11. This decision was taken as a precaution in response to a new Covid-19 variant. The precautionary measure is being taken as the Department of Health and Social Care and the UK Health Security Agency examined the variant BA.2.86, which was first detected in the UK on Friday, August 18, 2023, the NHSE said on Aug. 30. While NHS England had previously announced that vaccinations for both NHS programmes would begin on October 2 for residents of older adult care homes, appointments for other eligible groups were scheduled for the following week, starting on October 7. This decision prompted community pharmacy leaders to denounce the delayed start of the flu service as 'unacceptable'.

The NHS on Sunday (January 30) expanded its Covid-19 vaccination programme to include vulnerable children aged five to 11 years. Eligible children include those with diabetes, immunosuppression, learning disabilities, and other conditions as outlined by the UK Health Security Agency in the Green Book. Additionally, children living with someone immunosuppressed will be eligible to get the first dose of the Covid-19 vaccine in line with advice issued by the Joint Committee on Vaccination and Immunisation (JCVI). According to the NHS, there are around 500,000 eligible children in the latest cohort. GP and deputy lead for NHS vaccination programme Dr Nikki Kanani, said: "We know vaccines give significant protection against severe illness from Covid - including the omicron variant, so it is important that our youngest and most at-risk get protected.

British drugmaker AstraZeneca says it's confident that its new version of COVID-19 antibody treatment could protect immunocompromised patients against all known virus variants. Laboratory studies show the antibody, called AZD3152, neutralises all known variants of COVID-19 and AstraZeneca has support from regulators to make the treatment available by the end of this year, the company's vaccines head Iskra Reic said on Tuesday (April 18). AstraZeneca plans, pending more positive data and regulatory approval, to make the antibody available by the end of 2023. These types of therapies are most needed for people with compromised immune systems, either because of underlying conditions or because they are undergoing immune suppressing treatments. They account for nearly 2% of the global population. AstraZeneca's AZD3152, it new COVID-19 antibody, was acquired through a $157 million deal last year with British biotech start-up RQ Bio. The British drugmaker will likely make future investments like its current partnerships with RQ Bio but did not have any deals to announce, said Reic, a long-time AstraZeneca executive who has led the company's vaccines and immune therapies unit since it was formed in late 2021, during the pandemic.

Britain's Covid booster campaign is set to kick off this September, after the country became the first in the world to approve an Omicron-adapted shot. Around 26 million people in Britain are estimated to be eligible for an autumn Covid-19 booster, having had at least two Covid vaccine doses already, a UK Health Security Agency (UKHSA) spokesperson said. The preference is to deploy what is known as a "bivalent vaccine" that targets both the original virus and the Omicron variant through the autumn campaign, but that will depend on the health regulator (MHRA) approving such shots and the state of vaccine supplies. The UK's Joint Committee on Vaccination and Immunisation (JCVI) has advised boosters should be given to over-50s, individuals in clinical risk groups, frontline workers and care-home staff ahead of the winter, when respiratory viruses are typically at their peak. On Monday (August 15), the MHRA gave Moderna's bivalent shot conditional approval. The endorsement of the vaccine is based on data that showed it produced a marginally better immune response against some Omicron variants, versus the original novel coronavirus - although whether that translates into stronger protection against serious disease is unclear.

The NHS on Sunday (January 30) expanded its Covid-19 vaccination programme to include vulnerable children aged five to 11 years. Eligible children include those with diabetes, immunosuppression, learning disabilities, and other conditions as outlined by the UK Health Security Agency in the Green Book. Besides, children living with someone immunosuppressed will be eligible to get the first dose of the Covid vaccine in line with advice issued by the Joint Committee on Vaccination and Immunisation (JCVI). According to the NHS there are around 500,000 eligible children in the latest cohort. GP and deputy lead for NHS vaccination programme Dr Nikki Kanani, said: "We know vaccines give significant protection against severe illness from Covid - including the omicron variant, so it is important that our youngest and most at-risk get protected.

The NHS Confederation has urged the government to reconsider its 'living with Covid' plan and introduce mitigating actions that will help avoid further critical incidents being declared at the NHS front-line. The organisation said the high rates of Covid is having a major impact on the delivery of health services and slowing down efforts to reduce large waiting lists, noting that the country has been in the grip of another spike in Covid cases resulting from the Omicron BA.2 variant. With more than 20,000 patients now in hospital with Covid (or who have Covid but are in hospital for other reasons) and high staff absences, NHS is facing huge operational challenges, harming efforts to reduce waiting times in other areas, it said.

More than 7,000 hospitalisations and deaths in the UK could have been averted in summer 2022 if people had received their recommended COVID-19 vaccine doses, a new study published in The Lancet has revealed. The largest ever study carried out in the UK found that between a third and a half of the UK population had not had the recommended number of COVID vaccinations and boosters by summer 2022. In Northern Ireland, nearly 50 per cent of the population were under-vaccinated, while the proportion of under-vaccinated people in England was 45.7 per cent, 34.2 per cent for Scotland and 32.8 per cent Wales. Researchers from the Health Data Research UK (HDR UK) and the University of Edinburgh analysed the electronic health records of 67 million residents aged 5 and older from across the four countries during June 1 to September 30 2022.

Britain has approved Novavax's Covid-19 vaccine for use in those 18 years of age and older, the country's medicines regulator said on Thursday (February 3), bringing a fifth coronavirus shot to its roster amidst the rapid spread of the Omicron variant. The vaccine, Nuvaxovid, was approved as a first and second dose as it met the required safety, quality and effectiveness standards, the UK's Medicines and Healthcare products Regulatory Agency (MHRA) said in a statement. The British approval for Nuvaxovid comes days after the drugmaker filed for US authorisation of the vaccine following months of struggles with development and manufacturing problems, and follows a German backing earlier in the day. "We are continuing our vital safety work in monitoring the use of all Covid-19 vaccines, to ensure that their benefits in protecting people against Covid-19 disease continue to outweigh any risks," MHRA chief executive June Raine said.

It is not sustainable to give Covid-19 booster shots every three to six in the long term, Britain's chief scientific adviser said on Tuesday (January 4), even though the booster rollout is needed in the short term to combat the Omicron variant. "It would be a situation that isn't tenable to say everyone's going to need to be having another vaccine every three or six months. "That's not the long-term view of where this goes to," Patrick Vallance said at a news conference, adding that annual booster shots against Covid-19 might be necessary, similar to flu shots.

The UK Health Security Agency (UKHSA) and the Office for National Statistics (ONS) will jointly launch a new study to gather data on COVID-19 this winter. The Winter COVID-19 Infection Study (WCIS) will run from November 2023 to March 2024, involving up to 200,000 participants, UKHSA has said on Monday (October 2). UKHSA previously commissioned the Coronavirus Infection Survey (CIS), conducted by the ONS in collaboration with scientific study leaders from Oxford University, analysing more than 11.5 million swab tests and 3 million blood tests from April 2020 to March 2023. Meanwhile, the Winter CIS study involves conducting up to 32,000 lateral flow tests weekly, providing vital insights into COVID-19 prevalence in the broader community. The sample will be structured to broadly reflect key population characteristics.

The world has never been in a better position to end the Covid-19 pandemic, the head of the World Health Organization said on September 14, his most optimistic outlook yet on the years-long health crisis which has killed over six million people. "We are not there yet. But the end is in sight," WHO Director-General Tedros Adhanom Ghebreyesus told reporters at a virtual press conference. That was the most upbeat assessment from the UN agency since it declared an international emergency in January 2020 and started describing Covid-19 as a pandemic three months later. The virus, which emerged in China in late 2019, has killed nearly 6.5 million people and infected 606 million, roiling global economies and overwhelming healthcare systems. The rollout of vaccines and therapies have helped to stem deaths and hospitalisations, and the Omicron variant which emerged late last year causes less severe disease. Deaths from Covid-19 last week were the lowest since March 2020, the U.N. agency reported.

Britain has become the first country to approve a Codiv-19 vaccine that targets both the original and Omicron variant of the virus. Medicines regulator MHRA approved the so-called bivalent vaccine made by US drug company Moderna as a booster for adults. The agency's decision was based on clinical trial data that showed the booster triggered "a strong immune response" against both Omicron (BA.1) and the original 2020 virus, it said. The MHRA also cited an exploratory analysis in which the shot was also found to generate a good immune response against the currently dominant Omicron offshoots BA.4 and BA.5. "The first generation of Covid-19 vaccines being used in the UK continue to provide important protection against the disease and save lives," MHRA chief executive June Raine said in a statement. "What this bivalent vaccine gives us is a sharpened tool in our armoury to help protect us against this disease as the virus continues to evolve."

US biotech firm Moderna will build a new research and manufacturing centre in Britain to develop vaccines against new Covid-19 variants, other respiratory illnesses and help improve readiness for any future pandemics. The facility is expected to start producing shots in 2025 and Britain has made a commitment to buy Moderna's vaccines for the next decade under the agreement. Moderna's Covid-19 vaccines, which use messenger RNA (mRNA) technology, were among those deployed in Britain to tackle the crisis and enable prime minister Boris Johnson to reopen the economy from stringent lockdowns. Moderna chief executive Stephane Bancel said the priority was to develop a shot combining refreshed boosters against Covid, flu and Respiratory Syncytial Virus (RSV). "By building a plant in the UK, we are also providing the UK Government - which has a long term partnership with us, with this agreement - with the ability to be pandemic ready," Bancel said on Wednesday.