1.
Microbes can live on inert surfaces:
Correct Answer
D. From a few minutes to several months
Explanation
Microbes can live on inert surfaces for varying periods of time, ranging from a few minutes to several months. This means that these microorganisms can survive and thrive on non-living surfaces such as countertops, doorknobs, or furniture for extended periods. The exact duration of their survival depends on factors such as the type of microbe, the surface material, and the environmental conditions. It is important to maintain proper hygiene and regularly clean and disinfect these surfaces to prevent the spread of harmful microorganisms.
2.
The CDC recommends washing thoroughly and vigorously with soap and water for at least _____ seconds.
Correct Answer
A. 20
Explanation
The CDC recommends washing thoroughly and vigorously with soap and water for at least 20 seconds. This is because washing hands for 20 seconds has been found to effectively remove germs and reduce the risk of spreading infections. It is important to wash all parts of the hands, including the fingertips and under the nails, to ensure proper cleanliness.
3.
Nail clippers can be a source of infectious agents (bacteria, viruses, and fungi).
Correct Answer
A. True
Explanation
Nail clippers can indeed be a source of infectious agents such as bacteria, viruses, and fungi. This is because when we use nail clippers, there is a possibility of small cuts or injuries occurring on the skin around the nails. If the nail clippers are not properly cleaned and sanitized, these infectious agents can potentially contaminate the clippers and be transferred to other individuals, leading to infections. Therefore, it is important to regularly clean and disinfect nail clippers to prevent the spread of infectious diseases.
4.
It is important to cover when you cough or sneeze even when you are not sick because
Correct Answer
B. The disease-causing microbe has already started growing and dividing long before any symptoms begin to show, for most infections.
Explanation
The correct answer is "The disease-causing microbe has already started growing and dividing long before any symptoms begin to show, for most infections." This is because many infections are contagious even before symptoms appear. By covering your cough or sneeze, you can prevent the spread of these disease-causing microbes to others, even if you are not showing any symptoms yourself. Additionally, germs can be created from the droplets produced when you cough or sneeze, further emphasizing the importance of covering them. Therefore, all of the above reasons are valid explanations for why it is important to cover when you cough or sneeze, even when you are not sick.
5.
Vaccinations can:
Correct Answer
C. "Trick” your body into thinking that it has been infected by a particular microbe, hence enhancing its own defenses against subsequent infection.
Explanation
Vaccinations work by stimulating the immune system to recognize and remember specific microbes. They contain harmless versions of the microbe or parts of it, which "trick" the body into thinking it has been infected. This triggers an immune response, leading to the production of antibodies and the development of memory cells. If the person is later exposed to the actual microbe, their immune system is already prepared to quickly respond and fight off the infection. Vaccinations do not cure colds or eliminate infectious diseases, but they help enhance the body's defenses against them.
6.
Microbes thrive on virtually all food items, and more so on foods left at room temperature. Refrigeration ____or___ the growth of most microbes.
Correct Answer
C. Slow ; Stops
Explanation
Refrigeration slows or stops the growth of most microbes. This is because cold temperatures inhibit the metabolic activity of microbes, reducing their ability to reproduce and thrive. By slowing down their growth, refrigeration helps to preserve the quality and safety of food items. It does not completely eliminate or kill microbes, but rather slows their growth to a point where they are less likely to cause spoilage or foodborne illnesses.
7.
Infectious diseases can easily be picked up while_____ .
Correct Answer
A. Traveling
Explanation
Infectious diseases can easily be picked up while traveling because individuals may come into contact with contaminated surfaces, crowded areas, or people who are infected. Traveling often involves exposure to new environments, different climates, and potentially unhygienic conditions, increasing the risk of contracting infectious diseases. Additionally, being in close proximity to other travelers, especially in confined spaces like airplanes or buses, can facilitate the spread of diseases. Therefore, traveling poses a higher risk of acquiring infectious diseases compared to the other options listed.
8.
Picking your nose, mouth, or eyes can lead to the spread of a number of infections.
Correct Answer
A. True
Explanation
Picking your nose, mouth, or eyes can lead to the spread of infections because these areas are entry points for pathogens. When you touch your nose, mouth, or eyes with dirty hands, you can introduce bacteria, viruses, or other harmful microorganisms into your body. These pathogens can cause various infections such as colds, flu, conjunctivitis, or even more serious illnesses. Therefore, it is important to avoid picking these areas to prevent the spread of infections.
9.
Infections that can spread from animals to people are called “____ diseases” and are more common than most people realize
Correct Answer
C. Zoonotic
Explanation
Zoonotic diseases are infections that can spread from animals to people. These diseases are more common than most people realize, highlighting the importance of understanding and preventing them. Zoonotic diseases can be transmitted through direct contact with infected animals, consumption of contaminated food or water, or exposure to contaminated environments. Examples of zoonotic diseases include rabies, Lyme disease, and avian influenza. It is crucial to take necessary precautions, such as practicing good hygiene and vaccination, to minimize the risk of contracting these diseases.
10.
Watching your daily local news program can help in the prevention of infectious diseases by providing a good undersatnding of current events.
Correct Answer
A. True
Explanation
Watching your daily local news program can help in the prevention of infectious diseases by providing a good understanding of current events. This is because local news programs often provide updates on outbreaks, new strains of viruses, and preventive measures recommended by health authorities. By staying informed about the latest developments, individuals can take appropriate precautions to protect themselves and others from infectious diseases. Additionally, news programs may also feature interviews with experts who can provide valuable insights and advice on disease prevention strategies. Therefore, regularly watching local news can contribute to the prevention of infectious diseases.