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91Ó°ÊÓ

Match the following diseases with their respective etiological agent _____Swimmer's itch _____Cat scratch fever _____Loaiasis _____River blindness _____Myiasis (a) Afipia and Bartonella (b) Nematode larvae from blackfly bites (c) Filarial worm (d) Schistosome larvae (e) Screwworm fly larvae

Short Answer

Expert verified
Swimmer's itch - d); Cat scratch fever - a); Loaiasis - c); River blindness - b); Myiasis - e).

Step by step solution

01

Identify Etiological Agents

We need to match each disease with the correct etiological agent listed. The agents provided are: (a) Afipia and Bartonella, (b) Nematode larvae from blackfly bites, (c) Filarial worm, (d) Schistosome larvae, (e) Screwworm fly larvae. Each agent is a type of organism or pathogen responsible for causing the specified diseases.
02

Match Swimmer's Itch

Swimmer's itch is caused by an allergic reaction to certain parasites of birds and mammals, linked to water contact. The correct etiological agent is (d) Schistosome larvae.
03

Match Cat Scratch Fever

Cat scratch fever, also known as cat scratch disease, is caused by bacteria from the genus Bartonella. The correct etiological agent is (a) Afipia and Bartonella.
04

Match Loaiasis

Loaiasis is a condition caused by the Loa loa filarial worm. The correct etiological agent is (c) Filarial worm.
05

Match River Blindness

River blindness, or onchocerciasis, is caused by parasitic worms, specifically by bites from infected blackflies. The correct etiological agent is (b) Nematode larvae from blackfly bites.
06

Match Myiasis

Myiasis involves infestation by fly larvae, specifically the screwworm fly larvae. The correct etiological agent is (e) Screwworm fly larvae.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Understanding Disease Matching
In microbiology and disease diagnostics, 'disease matching' is the process of assigning specific diseases to their correct causative agents, known as etiological agents. This step is crucial as it forms the foundation for effective treatment and prevention strategies.

For instance, diseases like Swimmer's Itch and Loaiasis require different prevention and treatment methods because they are caused by different organisms. Swimmer's Itch is linked to Schistosome larvae while Loaiasis is due to the Loa loa filarial worm. Identifying the precise agent helps tailor medical responses appropriately.

This matching process is often done through laboratory tests and historical patient analysis, helping physicians determine the best course of action to combat the disease.
Exploring Parasitic Diseases
Parasitic diseases are illnesses caused by organisms that live on or in a host organism and cause harm. These organisms are known as parasites. Some common parasitic diseases include Loaiasis and River Blindness.

Parasitic diseases can lead to severe complications, such as chronic illness, anemia, or damage to the eyes, liver, and other organs. They can be transmitted through various vectors, such as mosquito bites or blackflies, depending on the nature of the parasites involved.
  • Loaiasis is caused by the filarial worm, transmitted to humans through the bite of a deer fly.
  • River blindness, caused by nematode larvae, usually results from the bite of infected blackflies.
Understanding the pathways of transmission and life cycles of these parasites is key in crafting effective public health strategies and treatments.
Identifying Infectious Agents
Infectious agents are organisms that cause disease. These include bacteria, viruses, fungi, and parasites. Each agent has unique characteristics that determine how they infect hosts and spread between individuals.

Cat scratch fever, for example, is caused by the bacteria Bartonella, which is typically transmitted through a scratch from an infected cat. On the other hand, Myiasis is due to fly larvae, highlighting the diversity of infectious agents and how they operate.
  • Bacteria like Afipia and Bartonella are usually involved in localized infections such as in cat scratch fever.
  • Parasitic worms, such as those causing River Blindness, require specific vectors like blackflies for transmission.
A clear understanding of the diverse types of infectious agents is fundamental in microbiology education as it equips students with the knowledge to identify and manage infectious diseases effectively.
The Role of Microbiology Education
Microbiology education plays a pivotal role in understanding and combating infectious diseases. It encompasses the study of microorganisms and their interactions with humans, wildlife, and the environment. Through microbiology, students learn how to identify different etiological agents and understand their life cycles and modes of transmission.

Courses often cover areas such as:
  • How infectious diseases spread and survive in different environments.
  • The immune system's role in fighting infections.
  • Techniques for isolating and identifying pathogens.
Effective microbiology education empowers future healthcare professionals to identify diseases accurately and devise appropriate treatment strategies. It also opens up discussions on global health challenges posed by infectious diseases and innovative solutions to keep outbreaks in check.

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Most popular questions from this chapter

Which of the following is NOT true about acne? (a) It is most commonly the result of male sex hormones that stimulate increased sebaceous gland growth and secretion of sebum. (b) Propionibacterium acnes in particular can turn a mild case of acne into a severe case by causing increased and widespread inflammation, tissue destruction, and scarring. (c) Common treatments are frequent cleansing of the skin and topical ointments that reduce the risk of infection. (d) Low doses of oral antibiotics are often prescribed to prevent bacterial infections of lesions and are without side effects. (e) In most cases, acne disappears or decreases in severity on its own as the body adjusts to the hormonal changes of puberty and sebaceous gland function stabilizes.

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Match the following etiological agents with their respective syndromes: _____Adenovirus _____Sarcoptes scabiei _____Chlamydia trachomatis _____Neisseria gonorrhoeae _____Pasteurella multocida _____Enterovirus _____Candida albicans (a) Vaginal yeast infection (b) Acute hemorrhagic conjunctivitis (c) Scabies (d) Ophthalmia neonatorum (e) Trachoma (f) Cat or dog bites and scratches (g) Epidemic keratoconjunctivitis

Gas gangrene is most likely associated with infection with: (a) Staphylococcus aureus (b) Clostridium perfringens (c) Streptococcus pneumoniae (d) Neisseria gonorrhoeae (e) Pseudomonas aeruginosa

Antibiotic is used to treat the eyes of newborn infants when: (a) The mother has gonorrhea (b) The mother has genital herpes (c) Neisseria gonorrhoeae is isolated from the newborn's eyes (d) Always (e) The mother has a history of multiple sex partners

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