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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.

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.

American global healthcare company, Viatris, has launched a new rapid self-test for qualitative detection of antibodies developed after Covid-19 vaccinations. The firm is going to market the Covid-19 Neutralising IgG Serological self-test, manufactured by PRIMA Lab SA, in the UK market, which would check presence of neutralising antibodies after vaccination. The presence of antibodies indicates that a person has had an immune response to the Covid-19 vaccine, and not that protective immunity has been acquired. The self-test that can be performed easily at home with a small blood sample, delivers results in just 10 minutes and has a recommended retail price of sub £20. After two doses of the Covid-19 vaccine, the self-test has shown a seroconversion rate of 98.3 per cent for the Pfizer vaccine, 98.5 per cent for the AstraZeneca vaccine and 95.2 per cent for the Moderna vaccine. It recommended that the test be performed at least 14 days after completing the vaccination cycle.

Covid-vaccine maker AstraZeneca said Friday that profits fell sharply in the first half on ballooning costs linked to its takeover of US biotech firm Alexion. The pharmaceutical group added that sales of its Covid-19 vaccine Vaxzevria slumped 49 percent in the second quarter. Net profit slumped 64 per cent to $746 million compared with the first six months of last year, AstraZeneca said in a statement. Operating expenses jumped 33 percent, "reflecting the addition of Alexion, and continued investment in new launches and the pipeline" of drugs, the group said. That offset a 48-percent jump in revenue to more than $22 billion. Revenue rose strongly thanks to sales of Alexion medicines. The group said annual revenue from Covid-19 medicines is anticipated to be broadly flat compared with 2021.

An alliance of companies has pledged to ensure equitable access to vaccines and treatments for pandemics, as the friction around intellectual property rights for Covid-19 interventions between the pharmaceutical industry and developing nations endures. At the heart of the plan is a commitment to set aside part of the production of vaccines and treatments upfront for vulnerable populations in low-income countries when the next pandemic arises, given how fragmented access to Covid tools has left many populations unprotected. In order to do better next time - and without knowing which companies will develop the first drugs and vaccines for the next pandemic - having the industry collectively make this commitment is potentially transformative, said Thomas Cueni, head of the International Federation of Pharmaceutical Manufacturers & Associations (IFPMA). The pledge, called the Berlin Declaration, was made on July 19 by members of the global pharmaceutical industry group that include many of the companies involved in developing Covid interventions, such as AstraZeneca, GSK, Moderna, Pfizer and Merck. The declaration is not legally binding. However, if a company that signed on reneges on its vow, it would face grave consequences in the court of public opinion, said Cueni.

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.

AstraZeneca said its antibody cocktail against Covid-19 would - unlike its vaccine - be priced commercially as it negotiates supply contracts with governments around the globe. "We are looking at a commercial pricing strategy. That is part of our negotiations with governments," Iskra Reic, Astra's executive vice president for vaccines and immune therapies, said in a media call on Thursday. She added that the group's main objective was to make the shot affordable and broadly available.