Answer to Question 1
ANS: 3
Answer to Question 2
3. Sanitizing toys, telephones, and doorknobs to kill pathogens
Rationale:
Sanitizing toys and all contact surfaces, separating children with infections, and teaching children to wash their hands all control the growth and spread of microorganisms. Teaching parents safe food preparation and storage is another tool to prevent the spread of microorganisms, but is not related to the flu virus. Immunizations should not be withheld from immunocompromised children, and this is not an infection-control strategy. To prevent the spread of communicable diseases, microorganisms must be killed or their growth controlled.