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BioNTech and Pfizer are to start tests on humans of next-generation vaccines that protect against a wide variety of coronaviruses in the second half of the year. Their experimental work on shots that go beyond the current approach include T-cell-enhancing shots, designed to primarily protect against severe disease if the virus becomes more dangerous, and pan-coronavirus shots that protect against the broader family of viruses and its mutations. In presentation slides posted on BioNTech's website for its investor day, the German biotech firm said its aim was to "provide durable variant protection". The two companies are currently discussing with regulators enhanced versions of their established shot to better protect against the Omicron variant and its sublineages. The virus' persistent mutation into new variants that more easily evade vaccine protection, as well as waning human immune memory, have added urgency to the search by companies, governments and health bodies for more reliable tools of protection. As part of a push to further boost its infectious disease business, BioNTech said it was independently working on precision antibiotics that kill superbugs that have grown resistant to currently available anti-infectives.

Covid-19 vaccine makers are shifting gears and planning for a smaller, more competitive booster shot market after delivering as many doses as fast as they could over the last 18 months. Executives at the biggest Covid vaccine makers including Pfizer and Moderna said they believe most people who wanted to get vaccinated against Covid have already done so - more than five billion people worldwide. In the coming year, most Covid vaccinations will be booster shots, or first inoculations for children, which are still gaining regulatory approvals around the world, they said. Pfizer, which makes its shot with Germany's BioNTech and Moderna still see a major role for themselves in the vaccine market even as overall demand declines. Upstart US vaccine maker Novavax and Germany's CureVac, which is working with GlaxoSmithKline, are developing vaccines they hope to target at the booster market. The roles of AstraZeneca and Johnson & Johnson, whose shots have been less popular or effective, are expected to decline in this market.

Health secretary Sajid Javid urged people to book a Covid-19 booster shot on Wednesday (December 1) as he said there were 22 confirmed cases of the Omicron virus variant in the country. Javid said the government believed a booster campaign would help protect against severe disease from Omicron, even if it turns out that vaccines are not as effective against the variant as previous strains of the disease. He said he hoped to know more about Omicron within two weeks, as scientists work to understand what impact the new variant will have on transmissibility and serious disease. "At this point in time the case numbers are very low," Javid told Sky News. "For the UK we've got 22 confirmed cases at the moment and that will go up, it will certainly go up." Britain plans to offer all adults a Covid-19 booster shot by the end of January. Government data shows 81 per cent of the population aged over 12 have had two doses of the vaccine while 32 per cent have had a booster shot or third dose.

French drugmaker Sanofi said on Monday (June 13) an upgraded version of the Covid-19 vaccine candidate it is developing with GSK showed potential in two trials to protect against the virus's main variants of concern, including the Omicron BA.1 and BA.2 strains, when used as a booster shot. While the two companies' first experimental Covid shot is undergoing review by the European Medicines Agency, Sanofi and GSK have continued work on a vaccine that is moulded on the now-supplanted Beta variant, hoping still that it will confer broad protection against future viral mutations. Sanofi said this new vaccine candidate was shown to significantly boost antibody levels against a number of variants of concern, when given to trial participants who had an initial course of mRNA vaccines, a type made by BioNTech-Pfizer and Moderna. In a separate trial conducted by a French hospitals network, Sanofi's Beta-adapted booster shot triggered a higher immune response than Sanofi's first-generation shot or Pfizer-BioNTech's established vaccine in previously vaccinated volunteers.

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.

Prime minister Boris Johnson received his Covid-19 booster shot on Thursday (December 2) and urged others to follow suit to help the country fend off the Omicron variant of coronavirus. Wearing a mask, Johnson briefly chatted to staff and others queuing for their shots at the vaccination centre in central London, asking them if they were there to receive a booster dose and thanking them for attending. Johnson, who said it could "have gone either way" when he was treated in hospital for Covid last year, was later filmed rolling up his shirt sleeve and receiving his shot. "Fantastic. Thank you so much," he said to the nurse, before receiving a badge that said "I've boosted my immunity".

Britain will offer a Covid-19 booster shot to all adults and could halve the dose interval for booster jabs from six to three months in a bid to accelerate its vaccination programme amid concern over the new Omicron coronavirus variant, as number of new cases found in the country rise. The move, backed by a scientific advisory body and Health Secretary Sajid Javid, comes as ministers scramble to react swiftly to the new variant, which was first detected in South Africa. Prime minister Boris Johnson has responded to the emergence of Omicron by making mask-wearing compulsory in shops and on public transport in England. Until now, only adults in the UK aged 40 and above were eligible for a booster dose six months after their last. But that timeframe will now be halved to three months, alongside the programme's expansion to all over-18s, with priority given to older people. "These measures will protect more people, more quickly and make us better protected as a nation," Javid told MPs.

Pfizer on Thursday said a single dose of its new respiratory syncytial virus (RSV) vaccine Abrysvo maintained its ability to protect against the illness through a second year of respiratory disease season. The company said in a press release that the vaccine's efficacy against RSV-associated lower respiratory tract disease with three or more symptoms was 77.8 per cent through season two, compared with efficacy of 88.9 per cent after the first RSV season, which led to the shot's US approval. The data is from a late-stage trial of more than 37,000 participants being conducted in both the Northern and Southern hemispheres. Cumulative efficacy over both seasons after around 16.4 months of disease surveillance was 81.5 per cent, Pfizer said. The data is similar to the efficacy of GSK's rival RSV shot Arexvy over two seasons, which was released in June.

The government announced today (November 19) that it would add booster shots to the Covid-19 pass for outbound international travel, though it added they would not be added to the domestic pass at this time. The Department of Health and Social Care said travellers who have had a booster or a third dose would be able to demonstrate their vaccine status through the NHS Covid Pass from today. The addition will enable those who have had their booster or third dose to travel to countries including Israel, Croatia and Austria who have already introduced a time limit for the Covid-19 vaccine to be valid for quarantine free travel. Booster and third doses will not be added to the domestic 'Covid Pass' as it is not a current requirement for individuals to receive booster doses to qualify as fully vaccinated. A booster is not necessary to travel into England.

The University of Oxford on Tuesday said there was no evidence that vaccines would not prevent severe disease from Omicron, but that it was ready to rapidly develop an updated version of its vaccine developed with AstraZeneca if necessary. Earlier on Tuesday, the head of drugmaker Moderna said that Covid-19 shots were unlikely to be as effective against the variant, jolting global markets. The University of Oxford said that there was limited data on Omicron so far, and that it would carefully evaluate the impact of the variant on its shot, echoing an AstraZeneca statement last week. "Despite the appearance of new variants over the past year, vaccines have continued to provide very high levels of protection against severe disease and there is no evidence so far that Omicron is any different," it said in a statement.

Kate Bingham, the former head of the UK's Covid-19 Vaccine Taskforce who secured millions of doses for the country, said scientists should know within a week whether existing shots are effective against the Omicron variant of the coronavirus. Bingham, a venture capitalist who backed multiple vaccines at the start of the pandemic to secure early access for Britain, said she currently expected that the leading shots would still show efficacy. "The question is do they have the same level of efficacy?" she said on Wednesday. Bingham, who has returned to her role as managing partner at SV Health Investors, said Britain had built up the capability to quickly test existing vaccines against new variants. "It's not something you can do overnight, but we will get data, I would have thought within a week as to whether or not the vaccines work or don't," she said.

Johnson & Johnson said on Wednesday (January 18) that it was pulling the plug on a late-stage global trial of an HIV vaccine after the shot was found ineffective at preventing infections. The failure of the trial marks yet another setback in the search for a vaccine against a virus known to mutate rapidly and find unique ways to evade the immune system, and comes more than a year after another of J&J's HIV vaccine failed a study. "It's not the outcome we had hoped for, unfortunately," said a spokesperson for the National Institute of Allergy and Infectious Diseases, a J&J partner in the trial. "The development of a safe and effective HIV vaccine has been a considerable scientific challenge, but we will learn from this study and continue forward." The trial involved administering two different types of a shot, which uses a cold-causing virus to deliver the genetic code of HIV, spread over four vaccination visits in a year. J&J used similar technology for its COVID-19 vaccine. The study, which began in 2019, was conducted at over 50 sites and included about 3,900 gay men and transgender people - groups that are considered vulnerable to the infection.

Health authorities in India have said that Biological E's Covid-19 vaccine Corbevax can be administered as a booster dose in people who have taken the country's other two main shots, Covaxin and AstraZeneca's Covishield, from Friday (Aug 12). Corbevax will be available to over 18s as precautionary booster six months after a second dose, the health ministry said in an August 8 letter to state authorities. Covishield is produced for the Indian market by the Serum Institute of India under licence from AstraZeneca, while Bharat Biotech makes Covaxin. India has so far administered more than 2 billion Covid vaccine shots, including 113 million boosters, all of which have so far been of the same vaccine as the recipient's first two doses. The government says about 89 per cent of Indians above the age of 12 have had two doses.

GlaxoSmithKline and Sanofi said on Wednesday (December 15) they expect data from late-stage clinical trials of its booster dose of their Covid-19 vaccine candidate in the first quarter, instead of this year, another delay for the potential shot. The news came as two companies said preliminary data from trials showed the single-dose booster provided strong immune responses. They added that they need more time to test the booster on more people who have not been infected by the virus before they can submit data to regulators. The Phase III trial for the recombinant adjuvanted Covid-19 vaccine recruited most participants in the third quarter, coinciding with a significant increase in the number of people infected globally due to the Delta variant, it said. "To provide the necessary data to regulatory authorities for the booster vaccine submission, the trial will continue to accrue the number of events needed for analysis, with results expected in Q1, 2022." No safety concerns were identified. This is the latest delay for the vaccine's development, putting the companies further behind rivals in the race for Covid-19 shots.

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.

Be informed about the vaccines and immunizations your government says is safe. Read this article before getting you or your family the N1H1 or flu shot and many more.

Health and social care workers in England, including those working in community pharmacy, will no longer have to have a Covid jab as a condition of employment from later this month, the government said on Tuesday (March 1). The government had announced on January 31 that it intended to revoke the regulations that made vaccination compulsory, subject to the results of a public consultation. The decision was taken because the Omicron strain of the virus was less severe than the Delta variant, and due to high rates of vaccination of people in the UK. Health secretary Sajid Javid told parliament in a written statement that more than 90,000 health and social care workers and members of the public responded to the consultation.

The Joint Committee on Vaccination and Immunisation (JCVI) on Thursday (May 19) said that an anticipated autumn Covid booster campaign would be aimed at people aged over 65, care home residents, frontline health and social care workers and all adults in a clinical risk group. The UK is offering a spring booster to the over-75s, care home residents and immunosuppressed people, and ministers have spoken openly of plans for a further booster campaign in the autumn. In interim advice, the JCVI stopped short of recommending another shot for all adults, though said the advice would be reviewed and updated. "The JCVI's current view is that in autumn 2022, a Covid-19 vaccine should be offered to: residents in a care home for older adults and staff; frontline health and social care workers; all those 65 years of age and over; and adults aged 16 to 64 years who are in a clinical risk group," the UK Health Security Agency said in a statement. Prime minister Boris Johnson, who was fiercely criticised for his handling of the early stages of the pandemic, lifted Covid restrictions in England in February, crediting Britain's quick initial vaccine rollout and the rollout of boosters with breaking the link between cases and deaths.

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