The measurements are ones we only see in old church cookbooks or on Grandma’s handwritten recipes — a dash (which is actually 1/8 teaspoon), a pinch (1/16 teaspoon) and a smidgen (1/32 teaspoon).

Small doses of the yellow-fever vaccine shield adults from the viral disease as effectively as the standard dose, suggests a clinical trial in Kenya and Uganda 1. Manufacture of the vaccine is ...