Which of the following is not a virulence factor of a pathogenic microbe?

Which of the following are exotoxins?

1. the toxin responsible for botulism

2. the lipopolysaccharide of Salmonella typhi

3. Staphylococcus aureus enterotoxin

4. lysozyme

Adherence to mucous membranes of the host is an important virulence factor in many pathogenic bacteria. The ability to adhere may be due to:

A capsule increases the virulence of certain pathogenic bacteria by:

The endotoxin of Gram-negative bacteria is:

The direct cause of the symptoms of tetanus is:

All of the following are useful in non-specific host defense against infectious disease EXCEPT:

The occurrence of an infectious disease depends upon

Each of the following enhances the pathogenicity of a microbe EXCEPT:

Exotoxins have all of the following properties EXCEPT:

Which of the following is not a host resistance factor?

A fever is usually one host response to bacterial invasion. This response may be due to:

Which of the following areas of the human body is usually colonized by the greatest number of bacteria?