Over the last few months public health guidance to prevent the spread of COVID-19 has called on people to wash hands, stifle sneezes, wear masks and keep their distance — measures to contain particles expelled […]

Over the last few months public health guidance to prevent the spread of COVID-19 has called on people to wash hands, stifle sneezes, wear masks and keep their distance — measures to contain particles expelled […]
Around the world people are staying inside, keeping their distance from others, washing hands and sterilizing surfaces in hopes of slowing the spread of COVID-19. To understand why these measures are necessary and what others […]
By Charles Haas, PhD Forty years ago next month, more than 200 cases of Legionnaires’ disease, resulting in 29 deaths, occurred at hotel hosting an American Legion conference in Philadelphia — giving the disease its […]
From November of 2001 to January of 2002 a contaminated cistern that had collected rain water for the village of Santa Isabel do Ivaí Paraná, Brazil infected more than 600 people with a parasitic disease […]
The past 10 years were the costliest in U.S. history with regard to natural disasters. Hurricane Sandy left 131 Americans dead, more than 6 million without power and $50 billion worth of damages, making it […]