Hand disinfection is frequently recommended for prevention of transmission of the rhinovirus that causes the common cold. A total of 212 volunteers were assigned at random to enter the hand-sanitizer group (HL+, which used the sanitizer every three hours or after handwashing) and the control group which was asked to use routine hand washing but avoid alcohol-based hand sanitizers.
Yes (infection) no (infection)
HL + 49 67
Control 49 47
Do the data give good evidence that the above hand sanitizing practice reduced the chance of getting the common cold?
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