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Microbiology

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MicrobiologyFill in the Blank

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15.

A difference between an acute disease and chronic disease is that chronic diseases have an extended period of __________.

16.

A person steps on a rusty nail and develops tetanus. In this case, the person has acquired a(n) __________ disease.

17.

A(n) __________ pathogen causes disease only when conditions are favorable for the microorganism because of transfer to an inappropriate body site or weakened immunity in an individual.

18.

The concentration of pathogen needed to kill 50% of an infected group of test animals is the __________.

19.

A(n) __________ infection is a small region of infection from which a pathogen may move to another part of the body to establish a second infection.

20.

Cilia, fimbriae, and pili are all examples of structures used by microbes for __________.

21.

The glycoprotein adhesion gp120 on HIV must interact with __________ on some immune cells as the first step in the process of infecting the cell.

22.

Adhesins are usually located on __________ of the pathogen and are composed mainly of __________ and __________.

23.

The Shiga and diphtheria toxins target __________ in host cells.

24.

Antigenic __________ is the result of reassortment of genes responsible for the production of influenza virus spike proteins between different virus particles while in the same host, whereas antigenic __________ is the result of point mutations in the spike proteins.

25.

Candida can invade tissue by producing the exoenzymes __________ and __________.

26.

The larval form of Schistosoma mansoni uses a __________ to help it gain entry through intact skin.

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