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Questions and Answers
Which disease is caused by a picorna virus?
Which disease is caused by a picorna virus?
What is a common method of prevention for measles?
What is a common method of prevention for measles?
Which clinical manifestation is associated with yellow fever?
Which clinical manifestation is associated with yellow fever?
What body system is primarily affected by AIDS?
What body system is primarily affected by AIDS?
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Which method is NOT effective for the prevention of common cold?
Which method is NOT effective for the prevention of common cold?
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What is the causative agent of smallpox?
What is the causative agent of smallpox?
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Which prevention method is recommended for controlling the spread of yellow fever?
Which prevention method is recommended for controlling the spread of yellow fever?
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What symptom is NOT commonly associated with measles?
What symptom is NOT commonly associated with measles?
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What is one way microbes can improve their survival in a host?
What is one way microbes can improve their survival in a host?
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What term is used for diseases that are transmitted from animals to humans?
What term is used for diseases that are transmitted from animals to humans?
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Which of the following is not a method by which microbes can invade a susceptible host?
Which of the following is not a method by which microbes can invade a susceptible host?
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Which of the following reservoirs is not considered a natural environment for microbes?
Which of the following reservoirs is not considered a natural environment for microbes?
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What is a consequence of reduced host immune response due to microbial activity?
What is a consequence of reduced host immune response due to microbial activity?
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Which of the following actions is directly associated with the pathogenicity of microbes?
Which of the following actions is directly associated with the pathogenicity of microbes?
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Which of the following statements about microbial reservoirs is incorrect?
Which of the following statements about microbial reservoirs is incorrect?
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What is an example of a direct effect of microbial activity on host tissue?
What is an example of a direct effect of microbial activity on host tissue?
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What is the primary role of microbes in ecosystems?
What is the primary role of microbes in ecosystems?
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What is the difference between pathogenicity and normal human flora?
What is the difference between pathogenicity and normal human flora?
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Which of the following is NOT a way microbes can invade a host?
Which of the following is NOT a way microbes can invade a host?
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What is a prominent barrier to microbial invasion in hosts?
What is a prominent barrier to microbial invasion in hosts?
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Which microbe is specifically noted for its strong adherence to the urinogenital tract?
Which microbe is specifically noted for its strong adherence to the urinogenital tract?
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What must microbes do to elicit a disease condition in a host?
What must microbes do to elicit a disease condition in a host?
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Where can normal human microflora commonly be found?
Where can normal human microflora commonly be found?
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Which statement about microbial diseases is correct?
Which statement about microbial diseases is correct?
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What is the primary mode of transmission for microbes via food and water?
What is the primary mode of transmission for microbes via food and water?
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How do pathogens typically reach the respiratory tract of a host?
How do pathogens typically reach the respiratory tract of a host?
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What term describes pathogens that are transmitted through direct or indirect contact?
What term describes pathogens that are transmitted through direct or indirect contact?
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What is the role of vectors in the transmission of pathogens?
What is the role of vectors in the transmission of pathogens?
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Which of the following is a way pathogens can be transmitted via contaminated objects?
Which of the following is a way pathogens can be transmitted via contaminated objects?
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What happens when a host coughs or sneezes regarding microbial transmission?
What happens when a host coughs or sneezes regarding microbial transmission?
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What condition often enables pathogens to spread through contaminated food or water?
What condition often enables pathogens to spread through contaminated food or water?
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Which of the following statements is true regarding the transmission of microbes?
Which of the following statements is true regarding the transmission of microbes?
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What is the primary method by which Trichophyton sp spreads?
What is the primary method by which Trichophyton sp spreads?
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Which symptom is NOT associated with malaria caused by Plasmodium sp?
Which symptom is NOT associated with malaria caused by Plasmodium sp?
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What type of organism causes malaria?
What type of organism causes malaria?
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What is the best preventive measure to avoid Trichophyton sp infections?
What is the best preventive measure to avoid Trichophyton sp infections?
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Which statement about the life cycle of Plasmodium sp is true?
Which statement about the life cycle of Plasmodium sp is true?
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What is a common symptom of Trichophyton sp infections?
What is a common symptom of Trichophyton sp infections?
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Why is the development of resistance to antimalarial drugs a concern?
Why is the development of resistance to antimalarial drugs a concern?
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Which of the following is a common method to treat Trichophyton sp infections?
Which of the following is a common method to treat Trichophyton sp infections?
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What is the primary symptom associated with leprosy?
What is the primary symptom associated with leprosy?
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Which bacterium is responsible for tuberculosis?
Which bacterium is responsible for tuberculosis?
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What is a common cause of pneumonia?
What is a common cause of pneumonia?
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Which of the following is a recommended preventive measure for gonorrhea?
Which of the following is a recommended preventive measure for gonorrhea?
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What type of infection is associated with syphilis?
What type of infection is associated with syphilis?
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What is a significant symptom of tetanus?
What is a significant symptom of tetanus?
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Which bacterium causes gonorrhea?
Which bacterium causes gonorrhea?
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What is a typical precaution against tuberculosis?
What is a typical precaution against tuberculosis?
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What condition is associated with high fever and constant coughing?
What condition is associated with high fever and constant coughing?
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How can tetanus infections primarily occur?
How can tetanus infections primarily occur?
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Flashcards
Microorganisms
Microorganisms
Organisms too small to be seen without a microscope, including bacteria, viruses, fungi, and protozoa.
Pathogenicity
Pathogenicity
The ability of a microbe to cause disease in a host.
Normal Human Flora
Normal Human Flora
The normal microbes that live on the surface of our body, usually harmless or even beneficial.
Reservoirs
Reservoirs
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Host Invasion
Host Invasion
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Skin Barrier
Skin Barrier
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Microbial Enzymes
Microbial Enzymes
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Body Orifices
Body Orifices
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Pathogens
Pathogens
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Infection
Infection
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Virulence
Virulence
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Toxins
Toxins
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Zoonotic diseases
Zoonotic diseases
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Microbial Transmission
Microbial Transmission
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Oral-Fecal Route
Oral-Fecal Route
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Direct Contact Transmission
Direct Contact Transmission
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Respiratory Route
Respiratory Route
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Indirect Contact Transmission
Indirect Contact Transmission
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Vector-Borne Transmission
Vector-Borne Transmission
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Portal of Entry
Portal of Entry
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What is a virus?
What is a virus?
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What is a zoonotic disease?
What is a zoonotic disease?
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What is Polio?
What is Polio?
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What is Measles?
What is Measles?
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What is Yellow Fever?
What is Yellow Fever?
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What is Smallpox?
What is Smallpox?
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What is a common cold?
What is a common cold?
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What is AIDS?
What is AIDS?
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Ringworm (Tinea corporis)
Ringworm (Tinea corporis)
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Athlete's Foot (Tinea pedis)
Athlete's Foot (Tinea pedis)
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Hyphae
Hyphae
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Protozoan
Protozoan
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Plasmodium sp.
Plasmodium sp.
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Malaria Vector
Malaria Vector
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Malaria
Malaria
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Sleeping Sickness (Trypanosomiasis)
Sleeping Sickness (Trypanosomiasis)
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Tuberculosis (TB)
Tuberculosis (TB)
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Tetanus
Tetanus
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Pneumonia
Pneumonia
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Leprosy
Leprosy
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Gonorrhea
Gonorrhea
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Syphilis
Syphilis
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Cholera
Cholera
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Meningitis
Meningitis
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Streptococcal Infection (Strep Throat)
Streptococcal Infection (Strep Throat)
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Salmonella Infection
Salmonella Infection
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Study Notes
Introduction
- Microbe is a short form for microorganism
- Microorganisms cannot be seen with the naked eye
- They include bacteria, fungi, viruses, and protozoa
- Microbes play important roles in nature
- They are important in ecosystems
- Humans use microbes for things like beer, yogurt, antibiotics, baking and soak away systems
- Learning outcomes include identifying microbes, microbial reservoirs, how microbes invade hosts, differences between pathogenicity and normal flora, methods of transmission, and analyzing the etiology and prevention of diseases
Learning Outcomes
- Define and identify various groups of microorganisms
- Identify microbial reservoirs
- Explain how microbes invade a susceptible host
- Differentiate between pathogenicity and normal flora
- Establish routes of transmission
- Analyze the etiology and prevention of microbial diseases
Main Body
Introduction
- The module introduces microorganisms, host invasion, pathogenicity, reservoirs, transmission, and microbial diseases
- It will be discussed under two units (Unit 1 and Unit 2)
Unit 1: Microorganisms
- Includes subunit 1 (host invasion)
- Includes subunit 2 (pathogenicity),
- Includes subunit 3 (reservoirs)
Unit 2: Microorganisms
- Includes subunit 2 (transmission)
- Includes subunit 3 (microbial diseases)
Host Invasion
- Microbes play significant roles in nature, even though small.
- They form a critical part of communities and ensure interactions between living and non-living components.
- They are essential for ecosystem sustenance
- Humans use their abilities to produce various products (e.g., beer, yogurt, antibiotics)
- They can harm humans (e.g cause disease)
- Disease occurs when microbes contact, multiply, and colonize a host (superficially or in tissues).
- They face the host's defense mechanisms.
- Skin is a crucial defense barrier that microbes try to overcome.
- Wounds, mouths, anuses, and vaginas are entry points for microbes.
- Microbes show preference areas.
Pathogenicity
- Microbes initiate alterations in the host due to their activities
- Activities include food acquisition and avoiding host defense actions
- They produce toxins
- Confiscate nutrients
- Destroy host tissue (e.g. in anaemia)
- Cause cancers or tumors
- Reduce host immune response
Reservoirs
- Microbes reside temporarily in environments called reservoirs.
- Examples of reservoirs include water, soil, atmosphere, humans, and wild animals
- Microbes move between reservoirs to survive.
- Diseases caused by microbes transmitted from animal reservoirs to humans are called zoonotic diseases
Transmission
- Microbes move by various methods
- Contaminated food or water (oral-faecal)
- Respiratory tract
- Direct contact with infected people or contaminated objects.
- Inoculation (through the skin)
Microbial Diseases
- Various kinds of microbial diseases
- Caused by bacteria, fungi, virus, and protozoa
- The causes, location in the host, transmission, symptoms, diagnosis, and treatment are covered in more detail in later parts of the module.
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Description
Explore the fascinating world of microorganisms in this quiz. You'll learn to identify different types of microbes, their roles in ecosystems, and how they invade hosts. Additionally, the quiz will cover the distinctions between pathogenicity and normal flora, as well as methods of disease prevention.