November 19th celebrates an underappreciated but life-saving invention: the toilet/ Although many inventions have led to significant improvements in public health- water chlorination, antibiotics, and vaccines, among many others- no other invention has had a greater impact than the toilet.

This week in the Global Post, Dr. Fred Were, a pediatrician and specialist in neonatal medicine and National Chairman of the Kenya Pediatric Association (KPA), wrote about the dengue outbreak that swept his country in October. Dr.