Exam 32: Epidemiology

Explain the concept of coevolution in terms of host- pathogen interactions.

Individuals who show no symptoms or only mild symptoms are said to have __________.

Certain therapeutic drugs increase susceptibility to infection.

A disease that is constantly present in low numbers is called an acute disease.

Pasteurization of milk helped eliminate the spread of ___________ to humans.

An example of a cyclical disease is

A nonliving source of infectious agents that infects large populations of people is called

An endemic disease is constantly present, usually at low incidence, in a population.

Candida albicans is a(n) __________, because it is generally causes disease only in those with immunocompromised systems.

The number of ill individuals within a population is referred to as

The most common vectorborne disease in the United States is

Diseases that suddenly become prevalent are referred to as __________diseases.

In just over a decade of efforts, the World Health Organization (WHO) eradicated smallpox through worldwide _ __________

Botswana and Swaziland have roughly 25% of the adult population infected with HIV.

To control a disease in a population, 100% immunization is necessary.

Explain why diseases such as rabies are so difficult to eradicate while other diseases such as brucellosis have been virtually eradicated.

Initial case studies in the United States suggested an unusually high AIDS prevalence among

The most common organism associated with urinary tract infections in hospitals is

Morbidity statistics more precisely define the health of a population than mortality statistics.

Where is the causative agent of anthrax, Bacillus anthracis, typically found?