Which of the following is false?
a. Only puncture wounds by rusty nails result in tetanus.
b. Rabies is seldom found in rodents (e.g., rats, mice).
c. Polio is transmitted by the fecal-oral route.
d. Arboviral encephalitis is rather common in the United States.
e. All of the above are true.

검증된 단계별 안내

Step 1: Understand each statement individually by recalling relevant microbiology concepts and epidemiology related to each disease mentioned.

Step 2: Analyze statement (a): Consider the causes of tetanus and whether only puncture wounds by rusty nails can result in tetanus. Recall the nature of Clostridium tetani spores and their environmental presence.

Step 3: Analyze statement (b): Review the typical reservoirs of rabies virus and whether rodents like rats and mice commonly carry or transmit rabies.

Step 4: Analyze statement (c): Recall the transmission route of poliovirus and confirm if the fecal-oral route is the primary mode of transmission.

Step 5: Analyze statement (d): Consider the prevalence of arboviral encephalitis in the United States and whether it is considered common or rare, based on epidemiological data.

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주요 개념

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Tetanus and Its Transmission

Tetanus is caused by the bacterium Clostridium tetani, which enters the body through wounds contaminated with spores, not exclusively rusty nails. Any puncture or deep wound exposed to soil or dirt can lead to infection, making the association with rusty nails a common misconception.

Rabies Reservoirs and Transmission

Rabies is primarily found in mammals such as bats, raccoons, skunks, and foxes, but it is rarely found in rodents like rats and mice. These rodents are generally not significant reservoirs or transmitters of the rabies virus.

Fecal-Oral Transmission of Polio

Poliovirus spreads mainly through the fecal-oral route, meaning the virus is shed in feces and transmitted via contaminated food, water, or hands. This mode of transmission is critical for understanding polio outbreaks and prevention strategies.

Which of the following is false?a. Only puncture wounds by rusty nails result in tetanus.b. Rabies is seldom found in rodents (e.g., rats, mice).c. Polio is transmitted by the fecal-oral route.d. Arboviral encephalitis is rather common in the United States.e. All of the above are true.