Ch. 9.1 Causes of infectious diseases Flashcards
1
Q
What are pathogens?
A
Viruses, prions, bacteria, protozoans, helminths, and fungi.
2
Q
Define epidemic
A
A widespread disease outbreak in a particular region during a specific time frame.
3
Q
Define pandemic
A
When an infection spreads to multiple countries.
4
Q
Define emerging pathogens
A
Newly identified agents as well as pathogens that previously caused only sporadic cases, but are increasingly common or exhibit an expanded geographical distribution.
5
Q
Define a reemerging pathogen
A
An infectious agent that was under control due to prevention or treatment and is now resurfacing.
6
Q
Define latent infection
A
When a patient doesn’t exhibit signs or symptoms.
