Group items tagged

Britain's biotech firm Avacta Group on Monday (January 10) announced halting sales of its Covid-19 rapid antigen lateral flow test AffiDX to replace antibodies in the device and increase its ability to diagnose the Omicron variant. The company stated that AffiDX is capable of detecting Omicron when the virus is present in high numbers in samples, but the sensitivity of the test reduces at lower viral loads. The performance of all rapid antigen tests came under scanner in wake of a large number of mutations in the Omicron variant. AffiDX contains both a proprietary Affimer reagent and a commercially available antibody. The Affimer reagent detects the Omicron variant with the same sensitivity as the Delta variant, and performance of the antibody is paired with the Affimer reagent in the test. This has been affected by the additional Omicron mutations, the firm said. Alastair Smith, chief executive of Avacta Group, said: "Our determination to only provide high quality, high performance diagnostic tests has led us to the correct decision to pause all marketing of the AffiDX® lateral flow antigen test. We have, of course, been unable to market the product in the UK since October 2021, as the product continues to await approval under the new CTDA regulatory process.

People who test positive for Covid-19 on rapid lateral flow tests will not need to confirm their results with a follow-up PCR test if they are not showing symptoms, the UK Health Security Agency said on Wednesday (January 5). Britain is reporting record daily case numbers, and the UKHSA said that the high prevalence meant the chance of a false positive from a lateral flow device (LFD) was low. The move could also reduce the burden on the testing system, and reduce confusion if the test results contradict each other. At current levels of prevalence, officials say a positive LFD result is likely to be accurate, even if a follow-up PCR were negative. "While cases of Covid continue to rise, this tried-and-tested approach means that LFDs can be used confidently to indicate Covid-19 infection without the need for PCR confirmation," said UKHSA chief executive Dr Jenny Harries.

A news report suggests the Department of Health and Social Care is aiming to be ready to start charging for Covid-19 tests which are currently free at the end of June. Britain has been increasingly dependent on rapid testing to try to tackle the more-transmissible Omicron variant, which has spread rapidly through the population but is less severe. The government has previously said it will end the universal free provision of easy-to-use lateral flow devices (LFDs) at a "later stage", with individuals and businesses bearing the cost. The Department of Health has declined to say what the tests cost, citing commercial contracts. One source has told the Reuters news agency they can run to £30 for a pack of seven. Free pick up from pharmacies The tests have been made freely available to order online or pick up from local pharmacies since April. The UK Health Security Agency said that between December 30 and January 5 more than 8 million LFDs were conducted, the highest weekly figure on record.

Following intermittent shortages during the holiday period and amid continued high level of demand for lateral flow tests (LFT) in pharmacies, the industry has voiced concerns over supplies. Royal Pharmaceutical Society in England chair Thorrun Govind recently gave numerous media interviews over the issue, supporting pharmacists and reassuring the public. She said it is 'frustrating' for pharmacy teams who are unable to access enough test kits to meet the growing demand and highlighted that placing all supplies with a single distributor as a key issue. Many in the sector have raised questions about the government's strategy for LFT distribution after it emerged that the sole distributor to pharmacies closed for four days shortly after receiving 2.5 million tests. Alliance Healthcare, from whom pharmacies receive LFTs, reportedly took delivery of the tests on Christmas Eve and then shut.

The minimum Covid-19 self-isolation period in England will be cut to five days from seven if someone tests negative twice, health secretary Sajid Javid said on Thursday (January 13) - a move that could reduce staffing disruption in businesses and infrastructure. The rapid spread of the Omicron variant has fuelled a spike in Covid-19 cases to record highs in Britain, and the surge has cause major disruption to the staffing of hospitals, schools and transport as staff have to self-isolate. "We've made the decision to reduce the minimum self-isolation period to five full days in England," Javid told parliament. "From Monday, people can test twice before they go, leaving isolation at the start of day six." The government had previously reduced isolation period to seven days from 10 days to people in England who get a negative result on a rapid lateral flow test two days in a row.