@BillGates: For the last 25 years, Dr. Firdausi Qadri, an immunologist and infectious disease researcher in Bangladesh, has been working to protect entire communities from cholera epidemics. https://t.co/F2pQiIYqry

http://twitter.com/BillGates

For the last 25 years, Dr. Firdausi Qadri, an immunologist and infectious disease researcher in Bangladesh, has been working to protect entire communities from cholera epidemics. https://t.co/F2pQiIYqry

— Bill Gates (@BillGates) October 7, 2020