New AI-designed vaccine could help fight future outbreaks

Artificial Intelligence (AI) is practically everywhere now, from classrooms and offices to hospitals and research labs. Its latest role may be among the most significant yet: Helping scientists design vaccines that could protect people from several related viruses and improve preparedness for future pandemics.

Researchers at the University of Cambridge have used AI to create the central component of a new vaccine before testing it in human volunteers. According to a BBC report, this is believed to be the first time an AI-designed vaccine antigen has reached this stage of human testing.

The vaccine is aimed at the wider coronavirus family. This includes known COVID-19 variants as well as related viruses found in animals, some of which could one day pose a threat to humans.

Vaccines work by training the immune system to recognise a virus and respond quickly. The difficulty is that many viruses often mutate. As they change, vaccines may become less effective, which is why COVID-19 and seasonal flu vaccines need regular updates.

Rather than building the vaccine around only current strains, the Cambridge team studied genetic data from many coronaviruses tracked through surveillance programmes. An AI system examined these sequences and designed what researchers call a super antigen. This vaccine component is intended to help the immune system recognise shared features across a broad group of related viruses.

An early trial involving 39 volunteers focused mainly on safety. A larger study of about 200 participants is now underway to see how strongly the vaccine stimulates the immune system. Results published in the Journal of Infection showed a modest immune response, though researchers remain hopeful about the wider promise of the approach.

The same technology is now being explored for influenza, Ebola and other viral haemorrhagic fevers. Scientists are also testing universal flu vaccines in animals and working on a possible H5N1 bird flu vaccine in case the virus becomes a broader human threat.

Independent vaccine experts have called the findings encouraging, while stressing that larger human trials will be crucial. If successful, AI could help scientists design vaccines faster and prepare for dangerous viruses before they spread widely.