It’s hard to overstate how important finding a reliable, affordable, and easy-to-use diagnostic is for stopping Alzheimer’s. This is a big step towards that goal. https://t.co/h2zNO8htpF

Investments in digital technology that strengthen Africa’s food and health security will be critical to help the continent recover and thrive after the pandemic. https://t.co/wuDasFFYY0

"Our best strategy in the age-old fight against the germs is our collaborative, data-based effort to study the world around us and within us. Our best strategy is science." @MaxCRoser explains how vaccines have dramatically improved humanity’s ability to fight infectious disease. https://t.co/1xWzzOapYw

This is a great loss for America, and for everyone who believes in making the world a more just place. John Lewis not only saw that our country could be better--he never stopped working to make it that way. We need leaders like him more than ever. https://t.co/YffaikZtZZ

Globally, a lack of medical oxygen–needed to treat pneumonia, malaria, and other diseases–leads to hundreds of thousands of deaths each year. @BernardOlayo founded @Hewa_Tele to address this often-overlooked challenge. https://t.co/TSea0oyDjP

This hero is playing a critical role in Kenya’s preparations to tackle COVID-19 by scaling up medical oxygen supplies that will be needed to keep the most critically ill patients alive. https://t.co/U2YcRgzSDA

I am committed to listening and learning more about systemic racism and what I can do with my actions and words to help create a more equal and just future. Black lives matter.

…in policing, criminal justice, education, health care, housing, the workplace and all other areas of their lives.

The horrifying killings of George Floyd, Ahmaud Arbery, Breonna Taylor and far too many other Black people—and the protests they sparked—are shining a light on the brutal injustices that Black people experience every day…

I continue to be inspired by all of the volunteers (including many retired health care workers and teachers) on the front lines of the fight against coronavirus each day. https://t.co/l38koBgE1P