AI in health and biology

Artificial Intelligence attracted headlines when Chat GPT 4 was released in March 2023. But many interesting developments took place earlier, which helped humanity to deal with critical health problems.

Dr Kamran Khan, a professor at the University of Toronto, is the founder of Blue Dot, a company that uses AI to predict infectious diseases. They have developed a platform that tracks 100,000 daily pieces of information in 65 languages from sources ranging from news websites to airline bookings. In December 2019, they tracked a new virus in the Wuhan market in China. They alerted that the virus would spread beyond China. They advised their clients in Canada to avoid the routes going to Wuhan. This was a month before the World Health Organisation proclaimed the Covid emergency. The AI they used is known as ‘narrow AI’, or a specialised AI system dedicated to a specific problem. It is not a general-purpose AI like Chat GPT.

Pfizer and Moderna, two pharmaceutical giants, used narrow AI for vaccine development for Covid-19. The platform used by these companies had been under development for decades. AI helped with analysing protein structures and optimizing candidate vaccines. This made it possible to create the new vaccine.

Chat GPT can be used for finding solutions to protracted medical problems for which doctors have no answers. In 2019, Courtney, an American mother found that the growth of her four-year old son, Alex, had stopped. He was in constant pain and had several abnormal tendencies. She visited America’s top 17 hospitals including some of the most famous ones. She could not find a remedy for her son. Finally, a few months after Chat GPT 4 was launched in 2023, she uploaded all the detailed medical notes on this AI tool. ChatGPT suggested that Alex's symptoms might be consistent with tethered cord syndrome (TCS), a neurological disorder. In this rare condition, the spinal cord is attached to the spinal canal, restricting its movement, leading to nerve damage and pain. Once the correct diagnosis was made, she could find a neurosurgeon to perform surgery successfully. She now expects her son to live a normal life.

I am aware of how AI is being used to find medicines for cancer and Alzheimer’s disease. Kit Gallagher, a postgraduate student at Oxford, has found a new method of detecting cancer in its early stage using Artificial Intelligence. He is a mathematician. He has devoted his life to apply mathematics to biology.  There are also many other researchers at Oxford University exploring the use of AI to find a cure for cancer.

India and other countries in Asia, the Middle East, Africa, and Latin America suffer from infectious diseases and rare diseases. They can work together to create AI-powered tools that identify diseases early and predict their spread, helping to save millions of lives. They can establish shared data centres and joint research centres. They can help the growth of hundreds of companies like the Blue Dot company in Toronto.

While using AI for a healthy future for half of the world’s people, it is necessary to be aware of the dangers of AI if proper care is not taken. A model developed by Demis Hassabis was able to predict 200 million protein structures, making it possible to develop medicines to treat diseases in an early stage. An advanced model developed by his company, known as Alfa-Fold 3, is even more efficient in helping companies to develop drugs.

AI can construct new drug molecules. Moreover, AI can structure new chemicals which do not exist in nature. AI can also make infections very deadly. A rogue scientist can cause havoc by misusing AI. Some AI models can even do it themselves, without human instruction. We should be careful that while AI can help stop the spread of diseases, it can also create new, deadlier ones.

The biggest danger from AI is that it can create new pathogens. In 2022, a company in North Carolina in the United States instructed AI to produce dangerous toxic molecules. Within six hours, the AI created 40000 dangerous molecules, including the chemical structure for VX nerve agent, the deadliest chemical weapon ever made. The AI also structured dangerous compounds which never existed on the planet before. The company was only performing a scientific experiment. It published its findings in a scientific journal.

The experiment is now well known among scientists. And that is why scientists feel scared of AI. They know that AI can detect disease and find medicines which no doctor can. They also know that AI can develop biological weapons which do not exist on the earth. If we take a narrow competitive approach to AI to win the race against other countries, AI will unleash weapons that will harm all countries. Two of the top companies, OpenAI and Anthropic strongly indicated in early 2025 that their new models might enable novices to create biological threats. The only alternative is to collaborate on the global stage to harness AI to make a healthy planet and to prevent its evolution into a monster that will create biological weapons.

Sundeep Waslekar is the President of Strategic Foresight Group, an international think tank, and author of A World Without War.