PaBi (16): epidemiology of microparasites Flashcards

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1
Q

what is a microparasite?

A

Small, normally unicellular, multiply within definitive host, short generation time and normally causes immunity to reinfection.

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2
Q

Give some examples of microparasites.

A

Bacteria, viruses, protozoa e.g. Plasmodium, trypanosomes, Giardia

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3
Q

What is the definition of Ro for microparasites?

A

The average number of secondary cases of infection to which one primary case can give rise throughout its infectious period if introduced into a defined population consisting solely of susceptible individuals- measured as number of hosts. i.e. the number of people that one sick person will infect.

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4
Q

What age group is malaria most prevalent in?

A

Babies age 0-4 years, they are highly susceptible because their immune system is still developing

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5
Q

What month is malaria most prevalent in?

A

September

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6
Q

What environmental factors affect parasite transmission?

A

Temperature, humidity, flooding, vectors, numbers of infected hosts, poor hygeine

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7
Q

How can people’s behaviour affect parasite transmission?

A

Personal hygiene, eating contaminated food or water,

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