Exam 31: Water and Food As Vehicles of Bacterial Diseases

Cholera can be transmitted by water or food.

The pH of MOST foods is

Identify and define the categories of food perishability.Compare the perishability of sugar,milk,and hard cheeses (such as parmesan).

Antibiotic therapy is not significantly useful for treating typhoid fever.

In the United States,individuals become infected with Vibrio cholerae most commonly by

Clostridium botulinum is a gram- ________ rod that produces an ________.

Why are antibiotics of little value by themselves in the treatment of cholera?

In the developed countries of the world,MOST intestinal infections are transmitted via

Compare and contrast the most probable number (MPN)procedure and the membrane filter (MF)procedure.

Which organisms are NOT involved in food fermentations?

Food poisoning generally results from the ingestion of food containing microbial toxins.

Staphylococcus aureus is a common foodborne disease,because it

Gram-negative bacteria are responsible for causing MOST foodborne diseases.

Water is considered to be the third most important common source of infectious diseases.

Pathogens that are transmitted via the fecal-oral route are the most common type of pathogens that infect drinking water.

Many food infection agents also cause waterborne diseases.

Verotoxin can cause

Acidic foods generally need a higher canning temperature than do nonacidic foods.

Which of the following is NOT characteristic of a coliform?

Legionellosis,caused by the bacterial respiratory pathogen Legionella pneumophila,has decreased in recent years due to advances in wastewater treatment procedures.