Washing your hands does not prevent spread of influenza.
The Public Health Agency of Canada, which commissioned the 2007 study by the Council of Canadian Academies, continues to recommend hand-washing as the primary preventive measure to prevent flu transmission.But the study notes that "no evidence has been found that hand hygiene or other interventions that might prevent contact transmission (e.g. glove use in health care facilities) prevent the transmission of influenza."The study does note that "contact transmission likely occurs," but continues that "the only interventions that have . . . shown unequivocally to reduce the spread, and to mitigate the impact, of influenza in populations are vaccines and antivirals."
Proud Canadian, Enlightened Atheist, Gaming God.