The robot will see you now: Health-care chatbots boom, but still can’t replace doctors

Some chatbots, including many that were used to screen for coronavirus tests, are still using technologies similar to simple decision trees. Have a persistent fever and lost your sense of smell? Yes, you qualify to get a test. But overall, the artificial intelligence technology is starting to become more advanced, and some companies are beginning to use true machine learning, the act of a system learning new things from examples, Fraser said.