Hand disinfection is frequently recommended for prevention of transmission of the rhinovirus that causes the common cold. A tota
l 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?
Nanomachines will work with atoms, not nuclei. The smallest unit of a chemical element, about a third of a nanometer in diameter. Atoms make up molecules and solid objects.
