Three units equates to two small (125ml) glasses of wine (containing 12% of alcohol by volume) or a whole pint of strong lager (5% ABV) or cider, according to the advice charity Drinkaware.
Study after study shows marked reductions in transmission in public spaces when hand hygiene is practiced, and a recent study found nearly undetectable influenza particle levels after hands contaminated with influenza were washed with either soap and water or an over-the-counter gel containing at least 50 percent alcohol.
One town official said that, although drinking alcohol is illegal in Bangladesh, people often make cheap brews containing large amounts of methylated spirit.