Specialists have calculated the optimum time to hand wash
Researchers from the UK found that a person needs to wash hands for at least 20 seconds in order to completely eliminate harmful bacteria.
It is reported by The Guardian, citing information provided by the Royal Pharmaceutical society.
Experts believe, to determine the optimal duration of handwashing is not necessary to use the timer, since it’s easy to sing “Happy Birthday” twice. This time would not be enough to eliminate all salesnetwork germs, but it would be enough to destroy all bacteria and viruses that can cause influenza, SARS and disorder of the gastrointestinal tract.
According to the study, standard hand washing helps to prevent about one-third of cases of diarrhoea and 16% of cases of respiratory infections.