Question 45

Handwashing prevents illness because pathogens are transferred by touch.

Handwashing is essential in preventing illness as it removes pathogens that can be transferred from person to person through touch. The act of washing hands effectively eliminates these harmful microorganisms, reducing the likelihood of infection.

A) pathogens transferred by touch

This option is correct because it directly relates to the primary reason why handwashing is emphasized by the CDC. Pathogens can easily be passed from surfaces and other individuals to our hands, and proper handwashing eliminates these pathogens, thereby preventing illness.

B) viruses accumulate less

This option is incorrect. While handwashing does help in reducing the presence of viruses, the statement does not directly address the mechanism of transmission. It lacks the clarity of how handwashing specifically prevents illness through the removal of pathogens transferred by touch.

C) microorganisms weaken immune system

This option is also incorrect. Although a high burden of microorganisms might impact the immune system, this statement does not accurately reflect the role of handwashing in preventing illness. Handwashing focuses on removing pathogens rather than addressing how they might weaken immunity.

D) only sanitizer removes resistant bacteria

This option is incorrect as it misrepresents the effectiveness of handwashing. While hand sanitizers can help reduce bacteria, handwashing with soap and water is effective in removing a wide range of pathogens, making this statement misleading.

Conclusion

In summary, the correct answer, A, emphasizes the critical role of handwashing in preventing the transfer of pathogens through touch, which is a fundamental aspect of infection control. The other options fail to correctly capture the relationship between handwashing and illness prevention, either by misrepresenting the facts or not addressing the core concept effectively.