16 Questions
What scientific study refers to the study of parasites and the organisms that host them?
Parasitology
What term is typically used to describe an infectious microorganism or agent?
Pathogen
What is the oldest and broadest sense of a pathogen?
Any organism or agent that can produce disease
What has the longest or most persistent potential for harboring a pathogen?
Soil
What are diseases in humans caused by infectious agents known as?
Pathogenic diseases
Name one example of an infectious microorganism or agent that can be considered a pathogen.
Virus, bacterium, protozoan, prion, viroid, or fungus
What is pathogenicity?
Pathogenicity is the potential disease-causing capacity of pathogens, involving a combination of infectivity and virulence.
What are Koch's postulates used for?
Koch's postulates are used to establish causal relationships between microbial pathogens and diseases.
Which strain is responsible for causing cholera?
Cholera is only caused by some strains of Vibrio cholerae.
What are opportunistic infections?
Opportunistic infections are infections that occur in hosts with immunodeficiency.
How is infectivity of pathogens transmitted?
Infectivity involves pathogen transmission through direct contact, indirect contact, or transfer by living vectors like mosquitos and ticks.
What is the basic reproduction number of an infection?
The basic reproduction number of an infection is the expected number of subsequent cases it is likely to cause through transmission.
What do virulence factors of bacteria include?
Bacterial virulence factors include adherence factors, invasion factors, capsules, toxins, and siderophores.
Which bacterial species primarily causes tuberculosis?
Mycobacterium tuberculosis primarily causes tuberculosis.
What is the disease burden of tuberculosis?
Tuberculosis killed 1.6 million people in 2021, mostly in Africa and Southeast Asia.
Which bacteria primarily cause bacterial pneumonia?
Bacterial pneumonia is primarily caused by Streptococcus pneumoniae, Staphylococcus aureus, Klebsiella pneumoniae, and Haemophilus influenzae.
Test your knowledge about pathogens and infectious agents, including viruses, bacteria, protozoa, prions, viroids, and fungi. Explore the characteristics and impact of these organisms on human health.
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