Pathogen and Infectious Agents Quiz

Parasitology

Pathogen

Any organism or agent that can produce disease

<p>Soil</p> Signup and view all the answers

<p>Pathogenic diseases</p> Signup and view all the answers

<p>Virus, bacterium, protozoan, prion, viroid, or fungus</p> Signup and view all the answers

<p>Pathogenicity is the potential disease-causing capacity of pathogens, involving a combination of infectivity and virulence.</p> Signup and view all the answers

<p>Koch's postulates are used to establish causal relationships between microbial pathogens and diseases.</p> Signup and view all the answers

<p>Cholera is only caused by some strains of Vibrio cholerae.</p> Signup and view all the answers

<p>Opportunistic infections are infections that occur in hosts with immunodeficiency.</p> Signup and view all the answers

<p>Infectivity involves pathogen transmission through direct contact, indirect contact, or transfer by living vectors like mosquitos and ticks.</p> Signup and view all the answers

<p>The basic reproduction number of an infection is the expected number of subsequent cases it is likely to cause through transmission.</p> Signup and view all the answers

<p>Bacterial virulence factors include adherence factors, invasion factors, capsules, toxins, and siderophores.</p> Signup and view all the answers

<p>Mycobacterium tuberculosis primarily causes tuberculosis.</p> Signup and view all the answers

<p>Tuberculosis killed 1.6 million people in 2021, mostly in Africa and Southeast Asia.</p> Signup and view all the answers

<p>Bacterial pneumonia is primarily caused by Streptococcus pneumoniae, Staphylococcus aureus, Klebsiella pneumoniae, and Haemophilus influenzae.</p> Signup and view all the answers