If all the world's scientific resources could be marshalled again to cure a disease

which are the top three that you would cure?

It gives me hope that, properly motivated and funded, we got a Covid vaccine in less than a year. If we took all the money and time and brainpower we currently waste on weapons and pointless apps to monitor egg freshness and boner pills and hair loss treatments and focused it all on researching how to cure something, what would have the biggest impact?

Mine would be:

1. Alzheimers
2. Diabetes
3. Asthma/COPD

Alzheimers and diabetes because they are horrific ways to die and asthma because it's so widespread, kills young people and reduces quality of life so much for decades.