Stopping diseases like TB starts with a good diagnosis

The question of how to stop the spread of infectious diseases has been ongoing for decades, but came into sharp focus when COVID-19 gripped the globe in 2020. One way to slow diseases is by improving diagnostic tests, and making them more accessible, so that people can know earlier if they have something like tuberculosis in its early stages. As Chhavi Sachdev reports from Mumbai, India, new TB tests there could be a game changer.