microbiology - module three - quiz review

Botulism is a disease caused when a pathogenic bacteria secretes a toxin into its environment, making the host organism sick. It is correct to say that botulism is a caused by a(n)

Exotoxin

Infectious mononucleosis is a disease caused by the Epstein-Barr virus through salivary contact. If you have this disease and take a sip of coffee and I then drink from your unwashed cup and contract the virus, which of the following sentences is an accurate description of how the virus entered my body?

Indirectly transmitted by way of a fomite.

Leishmaniasis is a tropical disease caused by the protozoa Leishmania donovani, which is commonly found in the blood of rodents. Human beings become infected after being bitten by a sandfly which has previously bitten a rodent. Using this example please correctly match those listed below with their roles in this life cycle.

Leishmania donovani: pathogen sand fly: vector rodent: resevoir human being: host

Tularemia is a bacterial disease that humans acquire by eating an undercooked animal such as a rabbit. It is correct to classify Tularemia as which type of disease?

Zoonotic

Chicken pox is a disease caused by the Varicella Zoster Virus. Once you have been infected with this virus it is generally not possible to have chicken pox again. This resistance is caused by

acquired immunity

"Introducing a pathogen into an area or substance" best defines

contamination

Middle Eastern Respiratory Syndrome (MERS) is caused by a coronavirus; in 2012 there was an outbreak of this disease; about 2500 people in the Middle East were infected; approximately 35% of those people died. MERS was not observed or recorded in other regions outside of the Middle East. The 2012 outbreak of MERS is best described as a(n)

epidemic

You contract food poisoning after eating at a restaurant. The chef who prepared your food used the restroom and did not wash her hands after, which resulted in some of her fecal matter remaining on her hands while she worked. As you eat your food and unknowing ingest her fecal matter you are a victim of a(n)

indirect mode of transmission

Poison ivy has no negative effects on my body but gives my son a bad skin rash if he is exposed. The reason I do not get a rash and he does is caused by my

innate immunity

Legionnaires Disease is a type of pneumonia caused by the bacteria Legionella pneumophila. This bacteria naturally lives in environmental water and soil and is transmitted to human beings when we breath it in from one of these sources. Using this example, the soil that contains L. pneumophila is best defined as the

resevoir

Helicobacter pylori is a bacteria that naturally lives in the guts of human beings and can cause stomach ulcers. This type of bacteria is part of

the normal flora

The infectious strength of a microbe is a good definition of

virulence