Norovirus, aka Norwalk, is in the news again. It’s sometimes called “stomach flu” but has nothing to do with any influenza virus. It does, however, deliver some nasty symptoms above and beyond your standard winter cold. There are no vaccines or antibiotics that can prevent or relieve symptoms but you can reduce your chances of catching it.
Chlorine bleach is an inexpensive and widely used chemical for sanitizing and disinfecting in restaurants, childcare centers and hospitals. The recommended concentrations for use in them varies from 200 to 10000ppm. Labels on supermarket bottle of bleach products offer little guidance on how to dilute bleach correctly for most of these uses. Continue reading