Read Dr. David Sack’s latest reflections of a modern day broad street pump in Cameroon on Bill & Melinda Gates Foundation’s Impatient Optimists blog:  I recently learned the details of events from Cameroon that reminded me of a modern day Broad Street pump. If you work in public health, you’ll remember that in 1854, John Snow removed the handle from the Broad Street water pump in London and – in all likelihood – stopped a cholera outbreak that had killed over 600 people. In Cameroon, the lessons learned from John Snow reverberated loudly….  Read the whole post at Impatient Optimists.