Medical Microbiology Module 2

What is epidemiology’s goal?

The goal of epidemiology is to contain outbreaks. This includes etiology and transmission. The size of the population is always considered.

What is etiology?

Etiology is the study of causes of diseases and disease transmission.

Morbidity is…

The state of being diseased.

Morbidity rate is…

The number of diseased individuals in a given population over a specific time period.

Prevalence is…

The number of individuals with a specific illness in a point of time.

Incidence is what?

The number of new cases.

What is mortality?

Death.

If a disease is sporadic, it is a…

Occasional disease.

If a disease is an endemic, it is a…

Constantly present disease.

If a disease is an epidemic…

It is a sign of larger unexpected cases, and is when the disease crosses the national baseline.

If a disease is a pandemic…

It is a worldwide scale of endemic.

Etiologic agent

Also known as causative agent, it is what caused the disease.

The black fly can cause what disease with what pathogen?

Onchocerca volvulus which leads to river blindness, or Onchocerciasis.

The flea can cause…

The plague.

The kissing bug can cause…

Chagas disease.

Louse can cause…

Tench fever, Relapsing fever, and Typhus.

Mite (Chigger) can cause…

Scrub Typhus and Rickettsialpox.

Mosquito can cause…

Yellow fever, Malaria, West Nile disease.

Sand fly can cause…

Leishmanaisis.

Tick can cause…

Lyme disease and Rocky mountain spotted fever.

Tsetse fly can cause…

Sleeping sickness, or African trypanosomaisis