Communicable Diseases Flashcards

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Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

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What are communicable diseases?

Communicable diseases are abnormal conditions caused by pathogens that can be transferred from one person to another.

What are pathogens?

Pathogens are microorganisms that cause disease, including viruses, bacteria, protists and fungi.

How do viruses replicate?

Viruses require a host cell to survive and reproduce. They reprogram the host cell’s machinery to produce viral proteins and genetic material, creating new virus copies.

What is a key characteristic of protists?

Protists are eukaryotic organisms with a nucleus, and some are parasitic, reducing the nutrients that the host can absorb.

How do fungi infections typically start?

Fungal infections usually start in the lungs or on the skin, as fungi reproduce through spores found in the air and soil.

What is the incubation period?

The incubation period is the time between infection and the appearance of symptoms, which can last from several hours to several years depending on the pathogen.

Revision Notes
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