Micro Bio CH16 quiz

Gas gangrene is a deep tissue infection caused by toxin production by a _____ species.

Clostridium

Molluscum Contagiosum are small fluid fill blisters caused by:

a pox virus

Hard, pus-filled lesions characterize the now extinct disease of:

Smallpox

Name the childhood vaccine protects against rubella, rubeola and a respiratory infection caused by the mumps virus

MMR

Toxin production and release is not a factor for which disease:

Chickenpox

Staphylococcus species can be found a resident microbiota of the skin, however Staphylococcus aureus is associated with certain skin infections. S. aureus can be identified from other "resident" Staph because it is:

Coagulase positive, whereas other Staph are not

Scarlet fever and Rheumatic fever are complications from an untreated _______ infection

Steptococcus pyogenes

Streptococcus pyogenes is known as a "Group A" strep because it:

it possesses a carbohydrate/sugar of the A-type

Bacterial/fungal species found as resident microbiota of the skin:

all of the above

• may vary depending on the location of the skin (i.e. scalp vs. foot)

• may vary during the lifespan of the individual (i.e. child vs. adult)

• may differ among individuals in a population

• may vary depending on the health and antibiotic use history of the person

In considering a diagnosis of Scarlet fever, and inportant consideration would a recent pharyangitis caused by:

Streptococcus pyogenes

Impetigo transmission is predominantly through:

direct contact or fomites

Which of the following is not a defensive mechanism of the skin:

presence of secreted IgA

The causative agent of acute glomerularnephritis, secondary to Impetigo.

Streptococcus pyogenes

Dermatophytes are the causative agent of _____ infections.

Tinea (ringworm)

Measles (Rubeola) is considered a serious infection because:

it can be associated with lingering immunosuppression

Which of the following diseases is caused by a Herpesvirus?

Chickenpox

With infections like Chickenpox and Measles antibiotic use is warranted:

only if secondary bacterial superinfections are present

Infection with Rubella virus (German measles):

can severely damage the fetus if a pregnant women is infected

Which of the following is not a pathogenicity factor for Streptococcus pyogenes?

Lipopolysaccharide (LPS)

Warts are caused by

human papillomaviruses

Which of the following does is not transmitted through a respiratory route?

Folliculitis

Choose the statement which is generally false concerning viral skin infections:

affected individuals are only contagious after a rash appears

Regarding the incidence of most "childhood rashes" - These diseases are most often seen in:

Late Fall/Early Winter

Vaccines for rubeola, rubella, chickenpox, Smallpox:

are live attenuated vaccines

Folliculitis and Scalded Skin Syndrome are both caused by pathogenic strains of:

Staphylococcus aureus

Regarding the causes of conjunctivitis (choose the true statement)

infections in neonates are generally due to Neisseria or Chylamydia from the mother's genital tract

Indicate all diseases for which respiratory/droplet transmission is a primary or possible mode of transmission.

• Chicken pox

• Rubella

• Smallpox

Which of the following viral infections is not directly associated with birth defects, miscarriage or fetal damage?

Human papillomavirus infections