research appraisal efficacy of alternate hand washing agents

make a search about Efficacy of alternate hand-washing agents. and then, do the requirements:

Write out the main research question and the rationale for the question include any background information available
Write out the hypotheses to be tested (null and alternate)
Description of variables (independent and dependent)
Create a diagram of the variable
What was the study design, how was the data obtained (include any information on sampling plan if given)
Discuss the results of the research.
What other research could you find that either provides an alternate finding or supports your research article? (Discuss)

(NO NEED TO BE TOO LONG, ONLY DO THE DESIRED).

(SHOULD BE CLEAR AND UNDERSTANDABLE FOR INTERNATIONAL STUDENT).