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Difficulty: MediumHuman Physiology, Health, and Diseases

Regarding human infectious diseases, their causative pathogens, and primary modes of transmission, which of the following statements are correct?

  1. Tuberculosis is a bacterial disease caused by Mycobacterium tuberculosis, primarily affecting the lungs.Answer
  2. Malaria is a protozoan disease caused by Plasmodium species, transmitted through female Anopheles mosquito bites.Answer
  3. C
    Typhoid fever is a viral infection spread through airborne respiratory droplets.
  4. Athlete's foot is a fungal infection of the skin commonly caused by dermatophytes.Answer

Answer

The correct statements are those identifying Tuberculosis as a bacterial infection of the lungs, Malaria as a protozoan infection transmitted by female Anopheles mosquitoes, and Athlete's foot as a fungal skin infection caused by dermatophytes.
The correct options accurately pair infectious diseases with their true pathogen categories and transmission routes: Tuberculosis is bacterial (Mycobacterium tuberculosis), Malaria is protozoan (Plasmodium spp.) transmitted by female Anopheles mosquitoes, and Athlete's foot is a fungal infection (dermatophytes).

Step-by-Step Solution

1
Evaluate the pathogen and organ targeting for Tuberculosis
Tuberculosis is correctly identified as a bacterial infection caused by Mycobacterium tuberculosis.
Mycobacterium tuberculosis is a bacterium that primarily causes pulmonary disease.
2
Evaluate the causative agent and vector for Malaria
Malaria is correctly identified as a protozoan disease transmitted by female Anopheles mosquitoes.
Plasmodium is a protozoan parasite, and female Anopheles mosquitoes serve as the biological vector.
3
Analyze the etiology and transmission route of Typhoid fever
The statement describing Typhoid fever as a respiratory virus is incorrect.
Typhoid fever is caused by the bacterium Salmonella typhi and is spread through the fecal-oral route (contaminated food/water), not airborne viruses.
4
Assess the biological nature of Athlete's foot
Athlete's foot is correctly recognized as a fungal infection.
Tinea pedis is caused by dermatophytes, a group of parasitic fungi.

Key Concept

Classification of human diseases by biological pathogen type (bacterium, protozoan, fungus, virus) and transmission pathway.
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Topics

Human Physiology, Health, and Diseases

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