Britain on Thursday said it would partner with an Oxford-based firm to provide testing for the T cell response of coronavirus vaccine candidates to try to assess their immune responses.
T cell immunity is thought to be essential to protect against infection from the SARS-COV-2 coronavirus, and could provide longer-term immunity than antibodies.
The UK Vaccine Taskforce has chosen Oxford Immunotec to supply T cell testing for its assessment of different vaccine candidates.
"It is important to be able to assess the different vaccines head-to-head and the T cell response is part of our portfolio of accredited assays that we are employing for cross-comparisons," Kate Bingham, chair of the UK Vaccines Taskforce, said in a statement.
Britain has signed supply deals for six different coronavirus vaccine candidates, including those being made by AstraZeneca and Pfizer and BioNTech, seen as among the frontrunners in the race for a vaccine.
Oxford Immunotec said its technology platform enabled the centralisation of fresh blood samples from different locations to measure the T cell response in a standardised way.
It said the platform, known as T-SPOT, was being used to identify the T cells made in response to the pathogen that causes tuberculosis.
Saudi Arabia shut its East-West oil pipeline on Friday after it was hit in a drone attack, disrupting a key route used to bypass shipping problems in the Strait of Hormuz.
BRICS members agreed on a joint declaration on Saturday, expected to condemn unilateral aggression by any country without naming individual states, according to sources cited by Reuters.
Philippine rescuers recovered 41 more charred remains from a ferry fire, authorities said on Saturday, raising the death toll to 76 and leaving 13 people unaccounted for, as forensic teams faced the daunting task of identifying the victims.
Russian air strikes in several Ukrainian regions on Saturday killed six people, injured dozens and damaged residential buildings and infrastructure across the country, officials said.
Bulgaria is investigating the cause of a fire at a weapons storage facility operated by EMCO, including the possibility of sabotage and a link to a previous blaze at another of the company's facilities in August, the interior minister said.
His Highness Sheikh Khaled bin Mohamed bin Zayed Al Nahyan, Crown Prince of Abu Dhabi, met Dr Masoud Pezeshkian, President of Iran, on the sidelines of the 18th BRICS Summit in New Delhi, India.
The United Arab Emirates expressed its solidarity with the Democratic Republic of the Congo following a fire at two schools in the city of Bukavu, which resulted in dozens of deaths and injuries.