Australian COVID-19 Vaccines Show Improved Immune Response: Researchers

Two Australian COVID-19 vaccines have shown potential to be an improved approach to boosting immunity against COVID-19, according to researchers at the Peter Doherty Institute and Monash University. Published in The Lancet’s eBioMedicine, 76 healthy adults from Melbourne, aged 18 to 64 and previously vaccinated with approved COVID-19 vaccines, were randomly selected to receive a fourth dose of the new vaccines. The vaccines showed a robust immune response, even at the lowest tested dose. Moreover, they demonstrated no safety concerns. “So far, both preclinical and clinical studies have shown our receptor binding domain (RBD) mRNA vaccine to provide a strong boost at low doses, suggesting the very real potential to develop a multivalent vaccine on an annual basis and to protect against emerging new variants of COVID-19, which are believed to be the root cause behind the ongoing ‘waves’ we are still experiencing,” Medical Indemnity Protection Society (MIPS) Prof. Colin Pouton noted....