US education may be the hardest issue our foundation works on. A recent visit to The Howard School in Chattanooga, Tennessee reminded me why it’s also one of the most inspiring. https://t.co/927CwK2imF

You could find wild poliovirus in 125 countries in 1988. Today, it exists in just two. And more than 18 million people are walking today who would otherwise have been paralyzed by polio. Here’s why we aren’t done yet: https://t.co/uXZoglQS7Z https://t.co/rY2eMaDReI

The incredible, diverse global partnership that halted wild polio’s spread in Nigeria 3 years ago makes me optimistic we’ll #EndPolio worldwide. https://t.co/Kr3ibLXdmd

Some of our most vital partners in the fight to #EndPolio are philanthropies like @alwaleed_philan, @bloombergdotorg, Tahir Foundation, Dalio Philanthropies & Ningxia Yanbao Charity Foundation. Their support has helped deliver vaccines and protect millions from polio paralysis. https://t.co/w6yUlN1CwX

Even a single child paralyzed by polio is one too many, but I’m optimistic that we will eradicate the disease thanks to the GPEI’s persistence and creativity. https://t.co/olGWetQPSN

In Abu Dhabi this week, the world committed $2.6B to #EndPolio. Thank you @MohamedBinZayed for your leadership in helping push this terrible disease to the brink of eradication. https://t.co/7tr4wNQjRK

@narendramodi .@narendramodi's leadership has been a catalyst to India's progress on improving health, nutrition and ensuring safe sanitation practices for many. @PMOIndia

The more I’ve learned about Alzheimer’s disease, the more I’ve come to admire the volunteers who participate in clinical trials, and their caregivers too. Here’s a way you can help fight Alzheimer’s: https://t.co/isfZoyZFPU https://t.co/rS27wglMOJ

Better tools for collecting and sharing data will help community health workers protect families in the poorest parts of the world.  https://t.co/dVONnMcY4c

Expanding the diversity of therapies in the pipeline and more efficiently recruiting patients for clinical trials will increase our odds of discovering a breakthrough. I’m hopeful it will lead to an intervention that reduces the impact of Alzheimer’s. https://t.co/j8DZbeUp8F

One of the many awful things about watching someone you love struggle with Alzheimer’s is the feeling of helplessness. You keep thinking that there must be something more you can do. Here's one option. https://t.co/TQ1Z0lYCkN

We have cut the number of child deaths in half over the last 20 years. New tools like these precision maps from 
@IHME_UW will help us cut child mortality in half again by 2030.  https://t.co/9XfRu6WuLK

Buildings are one of the five areas where we need a lot of innovation if we’re going to avoid a climate disaster. I wrote about one company with a particularly clever approach. https://t.co/OXdxSChPCX

A lot of work remains, but it’s exciting to see positive data on a drug candidate that may alter the course of Alzheimer’s disease. https://t.co/h97EBGqWyJ

I always like to try out a new TV show or two when I’m on the road. What should I watch next? I set up an Ask on @Likewise to collect your recommendations. https://t.co/6Knu7M3wyO

"This is a solvable problem." @CarbonCure (which I’ve helped fund through @btenergy Ventures) has developed an innovative way to reduce cement's carbon footprint: https://t.co/9gvmkPGtnT https://t.co/zaqUc3In6R

One of the best parts of my job is getting to work with some of the world’s most brilliant minds on seemingly intractable problems. Here’s how we’re trying to tackle one of the defining technical challenges of our time. https://t.co/F2Wd8vM4ia

This is one of the most important topics in medicine today: how can we make data more readily available for researchers to look for patterns and identify new pathways for treatment. https://t.co/hcji8sAhmy

The world has made incredible progress toward the goal to #endpolio thanks to partners like @MohamedBinZayed and the UAE. https://t.co/80j0A3MyJg

Melinda and I feel pressure to make every dollar and every day count, which is why we say no to a lot more opportunities than we say yes to. Working with partners around the world to #EndPolio has been a fight worth every dollar. https://t.co/a3gcP3M2HV