4. The recommendation from the Centers for Disease Control and Prevention (CDC) is that handwashing should involve vigorously rubbing hands together for at least how many seconds?
Answer: B
Handwashing should involve vigorously rubbing hands together for at least 15 seconds.
The Centers for Disease Control and Prevention (CDC) recommends that handwashing should be performed for a minimum of 15 seconds to effectively remove germs and prevent the spread of infections.
A) 5
Option A is incorrect because washing hands for only 5 seconds is insufficient to ensure that all areas of the hands are cleaned and that germs are effectively removed. Studies indicate that a longer duration is necessary for effective hand hygiene.
B) 15
Option B is correct as the CDC specifically advises that hands should be rubbed together for at least 15 seconds. This duration is supported by research showing that it significantly increases the likelihood of removing pathogens from the hands.
C) 45
Option C is incorrect as the recommended duration is shorter than 45 seconds. While longer handwashing can be beneficial, the CDC does not advocate for such an extended duration as a minimum requirement for effective hand hygiene.
D) 60
Option D is also incorrect because it exceeds the CDC's minimum recommendation of 15 seconds. Although handwashing for 60 seconds may enhance cleanliness, it is not necessary according to the established guidelines.
Conclusion
The correct answer is 15 seconds, as recommended by the CDC, ensuring effective hand hygiene. Other options either fall short of the required duration or exceed it unnecessarily, highlighting the importance of adhering to established health guidelines for optimal handwashing practices.