PT - JOURNAL ARTICLE AU - C Raina MacIntyre TI - Hand hygiene and face mask use within 36 hours of index patient symptom onset reduces flu transmission to household contacts AID - 10.1136/ebm1043 DP - 2010 Apr 01 TA - Evidence Based Medicine PG - 48--49 VI - 15 IP - 2 4099 - http://ebm.bmj.com/content/15/2/48.short 4100 - http://ebm.bmj.com/content/15/2/48.full SO - Evid Based Med2010 Apr 01; 15