question

transformation is the transfer of DNA from a donor to a recipient cell:

answer

as naked DNA in a solution

question

mutations arising from chance events in the environment are known as:

answer

spontaneous mutations

question

ultraviolet light may induce a mutation by:

answer

binding together adjacent thymine molecules on the DNA molecule

question

the deletion or insertion of extra nucleotides during a chromosomal replication can lead to:

answer

a mutation due to a shift in the reading frame

question

nitrous acid can cause a mutation by:

answer

converting DNA's adenine to hypoxanthine

question

the ames test is most useful for:

answer

learning whether a chemical can induce a bacterial mutation

question

which of the following does NOT apply to plasmids?
they are essential for the growth of the cell
they are composed of DNA
they multiply independently of the chromosome
they may pass from cell to cell in recombination
the fertility factor is a plasmid

answer

they are essential for the growth of the cell

question

the work of Avery MacLeod and McCarty is significant;because;it:

answer

called attention to the;involvement;of DNA in heredity;

question

during conjugation a recipient cell might be converted to a donor cell by the:

answer

acquisition of the F factor

question

transposons are movable genetic elements that:

answer

carry information for protein synthesis ; can move from one position on a chromosome to another position;

question

the rolling circle mechanism of DNA replication takes place during:

answer

bacterial conjugation

question

the competence of a bacterium refers to its:

answer

ability to take up DNA from the;environment

question

you have carried out a conjugation and discovered that the recipient cells have almost all become donors, but that no;chromosomal genes have been transfered. the male cell in the original mating was an:

answer

F+ cell

question

avery demonstrated that pneumonia cocci could take up DNA directly ;from the medium surrounding them. this is an example of:

answer

transformation

question

in one form of DNA transfer in bacteria, the DNA is transfered from one cell to another in a bacteriophage. if all fragments of the bacterial chromosome are transfered with equal frequency, the process is referred to as:

answer

specialized transduction

question

transposons are movable genetic elements that:

answer

carry information for protein synthesis

question

all of the following are true of a point mutation except:
if affects a base pair
it may be a change to a different nucleotide;
it may be a substituted nucleotide
all of the above are true

answer

all of the above are true

question

the competence of a bacterium refers to its ability to:

answer

take up DNA from the environment

question

mutations arising from chance events in the environment are known as:

answer

spontaneous mutations

question

which of the following enzymes would not be involved with excision repair?

answer

RNA polymerase

question

all of the following are true about DNA repair;mechanisms;except:
DNA polymerase proofreads DNA sequences
nuclease enzymes perform damage repair activities
mismatch repair involves replacing long sequences of DNA
damage repair involves the excision of damaged DNA and replacement with the proper nucleotides
;

answer

mismatch repair involves replacing long sequences of DNA

question

one of the Streptococcus pneumoniae;strains used by Griffith was called smooth because the cells:

answer

had a capsule

question

during conjugation a recipient cell might be converted to a donor cell by the:

answer

acquisition of the F factor

question

diphtheria-causing bacteria contain a prophage that codes for toxin produced during disease. this is a consequence of the phenomenon known as:

answer

lysogenic conversion

question

a phage that does not establish lysogeny in its host is referred to as:

answer

lytic

question

Streptococcus pyogenes;produces a protein that, anchored in the cell wall and cell membrane, allows the bacterial cell to adhere firmly to the pharyngeal tissue. this protein is called:

answer

M protein

question

Streptococcus pyogenes is a:

answer

beta-hemolytic streptococcus

question

erythrogenic toxin is:

answer

produced by;Streptococcus pyogenes and damages the capillaries

question

a 1 year-old female was hospitalized with fever, lethargy and rash. Gram-negative, oxidase-positive cocci were cultured from her cerebrospinal fluid. her symptoms were caused by:

answer

Neisseria meningitidis

question

a Corynebacterium diphtheria infection is characterized by:

answer

pseudomembrane formation in the respiratory tract

question

the erythrogenic toxin expressed in strains of;Streptococcus pyogenes is responsible for:

answer

the skin rash

question

in some cases of meningococcal meningitis, hemorrhagic lesion form in the adredal glands, causing hormonal imbalance. this condition is called:

answer

waterhous-friderichson syndrome

question

Nosocomical infections are those that:

answer

are usually acquired in the hospital

question

all of the following are possible methods of transmission for Q fever except:
inhaling airborne dust particle
consuming raw milk
inhaling airborne droplets
consuming contaminated meat

answer

consuming contaminated meat

question

;
;
transformation

answer

the uptake of a free;DNA fragment from the surrounding environment and the expression of the genetic information in the recipient cell

question

;
;
conjugation

answer

a recombination process in which two live prokaryotic cells come together and the donor cell directly transfers DNA to the recipient cell

question

;
;
conjugation pilus

answer

an apparatus used by the donor (F+) cell that contacts the recipient (F-) cell during conjugation

question

;
;
F factor

answer

a plasmid that contains about 100 genes most of which are associated with plasmid DNA replication and production of the conjugation pilus;
(found in F+ cells)

question

;
;
transduction

answer

form of HGT requiring a virus to carry a chromosomal DNA fragment from donor cell to recipient cell

question

;
;
lytic cycle

answer

a cycle of bacteriophage replication in which the phage DNA penetrates the cell, destroys the host chromosome, replicates itself within the cell, and then destroys (lyses) the cell as new phages are released

question

;
;
lysogenic cycle

answer

phage DNA integrates within the chromosome by recombination, doesn't cause immediate lysis of cell

question

generalized transduction

answer

when phage with chromosomal DNA infect a cell

question

specialized transduction

answer

when a phage carries along some donor DNA as well as phage DNA and transfers both types of DNA to a recipient cell

question

Strep. throat
Streptococcal pharyngitis

answer

Red pharyngeal lining, patches of pus, pain on swallowing, enlarge tonsils and lymph nodes
(upper resp)

question

Diphtheria

answer

Mild sore throat, slight fever swelling in neck., toxin production damages organs
(upper resp)

question

Pertussis-whooping cough

answer

Cold-like symptoms, mucus accumulates, intense spasms of coughing
(upper resp)

question

Meningitis

answer

Membrane covering brain and spinal cord (meninges) become inflamed. Primary in children under age 4.
Severe headache, sudden high fever, stiff neck.
(upper resp)

question

Streptococcus pyogenes

answer

aerotolerant anaerobes, gram+ cocci in chains
virulence factors: beta-hemolytic, M protein, erythogenic toxin, streptokinase & hyaluronidase

question

Streptokinase

answer

allows streptococci to escape from a fibrin clot

question

Hyaluronidase

answer

dissolves glue holding cells together. Hyaluroincacid is a major constituent of the interstitial space between cells.

question

Alpha-hemolyticstreptococci

answer

turn blood agar an olive-green color
Due to partial destruction of the red blood cell in the medium.

question

Beta-hemolyticstreptococci

answer

surrounded by clear, colorless zone
Due to complete destruction of red blood cells.

question

M protein

answer

–Located in the cell wall and pili of streptococci
–Encouraged adherence to pharynegealtissue
–Retards phagocytosis

question

Scarlet fever

answer

–strep throat accompanied by a skin rash due to production of
erythrogenic (“red forming”) toxin

question

prophage

answer

viral genome integrated into cell DNA

question

Lysogenic Conversion

answer

Cells gain new properties, for example altered surface components, when they become a lysogenof a phage

question

Rheumatic fever

answer

characterized by fever and inflammation of the small blood vessels
–Complication of untreated Streptococcal pharyngitis.

question

Glomerulonephritis

answer

Complications like rheumatic fever where damage to kidneys arises from body’s antibodies reacting with streptococcal antigens bound to the kidney
-complication of untreated Streptococcal pharyngitis

question

Erysipelas –skin infection

answer

reddish patches on skin often with high fever. Involves lymph nodes, may have pus filled lesions. Common faces of children.
-complication of untreated Streptococcal pharyngitis

question

Necrotizing fasciitis

answer

Very rareflesh-eating disease
•Streptococcusbacteria spread deep within the fascia, fibrous sheets of connective tissue surrounding muscles and binding them to one another.
•There extensive damaged occurs that
–involves rise in body temp,
–in the host the toxin and bacteria acts as a superantigen causing the immune system to contribute to the tissue damage

question

Puerperal sepsis
(Childbirth fever)

answer

Uterus becomes infected during the birth process with Streptococcus.

question

Septicemia

answer

“blood poisoning”when streptococci gets into and spreads throughout the body through the blood system.

question

Corynebacterium diphtheriae

answer

–Gram + , nonspore-forming club-shaped rods.
–with lysogenic corynephage that contain the genes for an exotoxin production

question

Bordetella pertussis

answer

encapsulated Gram negative cocobacillus
•Virulence factors: –non-invasive but highly destructive to ciliated epithelium;
•ciliaryaction is blocked by accumulations of dense masses of these bacteria in the trachea and bronchia.
–endotoxin released upon bacterial cells death, and increases host’s cytotoxinaction causing the eventual loss of ciliated cells

question

A Corynebacterium dipheria infection is characterized by:

answer

pseudomembrane formation in the respiratory tract

question

the erythrogenic toxin expressed in strains of Streptococcus pyrogenes is responsible for:

answer

the skin rash

question

In some cases of memingococcal meningitis, hemorrhagic lesions form in the adrenal glands, causing hormonal imbalance. This condition is called:

answer

waterhous-friderichson syndrome

question

Nosocomical infections are those that:

answer

are usually acquired in the hospital

question

All of the following are possible methods of transmission for Q fever except:
-inhaling airborne dust particles
-consuming raw milk
-inhaling airborne droplets
-consuming contaminated meat

answer

consuming contaminated meat

question

all of the following are bacterial diseases of the lower respiratory tract except:
-tuberculosis
-legionnaires' disease
-psittacosis
-klebsiella pneumonia
-pertussis (whooping cough)

answer

pertussis (whooping cough)

question

;
;
legionnaires disease is caused by a:

answer

gram-negative rod

question

;
cases of psittacosis may be acquired by:

answer

contact with infected parrots or;parakeets;

question

Which of the following is not a symptom of lethal pneumonia:
-fluid build up in the lung cavity
-reduction of oxygen intake
-death of lung tissue
-increased elimination of carbon dioxide

answer

increased elimination of carbon dioxide

question

;
What is the agent of primary atypical pneumonia?
;

answer

Mycoplasma pneumoniae
;

question

;
Cases of Legionnaire's disease have been linked to bacteria which:

answer

accumulate in standing water

question

Describe Q fever

answer

a rickettsial disease associated with livestock animals

question

penicillin is useless for the treatment of mycoplasma pneumonia becuase the causative organism:

answer

have no cell wall

question

Which of the following agents do not produce a toxin?
-boredetella pertussin
-corynebacterium diptheriae
-streptococcus pyogenes
-mycobacterium tuberculosis
-none, all produce toxin

answer

mycobacterium tuberculosis

question

A patient has fever, difficulty breathing, chest pains, and fluid in the alveoli. Gram-positive cocci were isolated from the sputum. The patient most likely has:

answer

pneumonococcal pneumonia

question

based on where in the body the infection occurs, which organism does not belong with the others?
-bordetella pertusis
-corynebacterium dipththeriae
-mycobacterium tuberculosis
-steprococcus pyogenes

answer

mycobacterium tuberculosis

question

the diagnosis of tuberculosis is aided by:

answer

recovery of acid-fast rods from the sputum

question

bacteriophages have been located in a lysogenic relationship with the causative organisms of:

answer

diphtheria and scarlet fever

question

serratia marcescens is currently considered to be a cause of:

answer

meningitis

question

A child suffering from repeated bouts of a violent, high-pitched cough is brought to her physician's office. The physician is likely to diagnose the infection as:

answer

bordetella pertussis

question

Streptococcus pyogenes;causes all of the following diseases, except:
-strep throat
-scarlet fever
-pneumonococcal pneumonia
-puerperal fever

answer

pneumonococcal pneumonia;

question

A pleomorphic organism with no cell wall that causes a type of pneumonia is:

answer

Mycoplasma pneumoniae

question

;
;
Erythrogenic toxin is produced by:
;

answer

Streptococcus pyrogenes;and damages the capillaries

question

;
an important principal criterion for the diagnosis of meningococcal meningitis is:
;

answer

gram-negative diplococci in spinal;fluid
;

question

;
A pleomorphic organism with no cell wall that causes a type of pneumonia is:

answer

Mycoplasma pneumoniae

question

Which of the following statements about "flesh-eating" streptococcus is incorrect?
-it is caused by a Group A streptococcus
-is also known as necrotizing faciitis because it travels along the fascia
- it causes death in high number cases
-it is considered a common complication of strep throat
-it involves toxemia

answer

it is considered a common complication of strep throat

question

What is the disease where symptoms include a sore throat, fever, and swollen neck glands? Normally, an individual experiences only one case in a lifetime because the immune system produces special antibodies, called antitoxins.

answer

scarlet fever

question

;
;
The material used in the pertussis vaccine consists of:
;

answer

acellular chemical extracts of Bordetella pertussis

question

All of the following are bacterial diseases of the lower respiratory tract except:
-tuberculosis
-legionnaires disease
-pertussis (whooping cough)
-Klebsiella;pneumonia

answer

pertussis (whooping cough)

question

What is an organism present in air and soil that has been a concern with cooked rice that has been standing at room temperature?
;

answer

Bacillus cereus

question

;
The incubation period for staphylococcal food poisoning is shorter than that for salmonellosis because:

answer

staphylococcal food poisoning is due to a toxin rather than growth of bacteria

question

An enormous number of cholera bacilli must be present in contaminated food for infection to be established because:

answer

most bacilli will be destroyed by the stomach acid

question

Clostridium perfringens has received;notoriety;in recent years as an important cause of:
;

answer

food poisoning

question

all of the following describe typhoid fever except:
-the causative organism is a gram-negative rod
-human carriers harbor the causative organism
-ulcers may form in the tissue of the intestine
-the disease is common in barnyard animals
-rose spots often occur on the body surface

answer

the disease is common in barnyard animals

question

;
Brucellosis is an occupational hazard of those who:
;

answer

work with dairy herds

question

;
antibiotics are of no value treating botulism because:
;

answer

the person is intoxicated rather than infected

question

;
poultry products are a likely source of infection by:
;

answer

Campylobacter jejuni

question

all of the following apply to Clostridium botulinum;except:
-it produces a high;molecular;weight toxin
-it is a gram-positive anaerobic spore forming rod
-it may be involved with SIDS
-it is an important cause of disease in agricultural crops
-it may be the cause of limberneck in poultry

answer

it produces a high molecular weight toxin

question

;
the important consideration in treating patients who have bacterial dysentery is:
;

answer

replacement of lost fluids

question

;
The most common cause of traveler's diarrhea is:

answer

Eschericha coli

question

No diarrhea can compare with the extensive diarrhea associated with:

answer

cholera

question

most gastrointestinal infections are treated with:

answer

penicillin

question

Bacterial intoxication differ from bacterial infection of the digestive system in that intoxications:

answer

have shorter incubation times

question

A 38 year old mad had onset of fever, chills, nausea, and myalgia. On April 29, he had eaten raw oysters. On May 2, he was admitted to a hospital because of fever and two circular necrotic lesions on the left leg. What is most likely the cause of the illness?

answer

Vibrio vulnificus

question

True or false: Travelers to cholera regions of the world can be immunized against cholera.

answer

true

question

What is one of the most heat resistant exotoxins?

answer

the staphylococcus enterotoxin

question

All the following conditions may be caused by Clostridium botulinum except:
-a wound botulism
-intestinal ulcers
-fodder disease
-infant botulism
-limberneck

answer

intestinal ulcers

question

Which of the following pairs is incorrectly matched?
-beef...E.coli
-delicatessen meats...listeria
-eggs...clostridium botulinum
-milk...Campylobacter
-oysters...Vibrio
E. Oysters -- Vibrio

answer

eggs...clostridium botulinum

question

All of the following apply to shigellosis except:
-recoverers generally become carriers
-the disease is caused by Gram-positive coccus
-waves of intense abdominal cramps occur some cases
-most cases subside without complications
-the causative organism can be located in stool specimens

answer

the disease is caused by a Gram-positive coccus

question

All the following bacteria are recognized as causes of foodborne or waterborne infections except:
-Bacillus cereus
-Aeromonas hydrophila
-Yersinia enterocolitica
-Vibrio parahaemolyticus
-Yersinia pestis

answer

Yersinia pestis

question

After recovery from typhoid fever, the carriers may harbor the organism in their:

answer

gall bladder

question

The last pandemic of Asiatic cholera

answer

is going on today

question

What are R factors?

answer

extra-chromosomal elements that contain drug-resistant genes

question

Minimal heating of food to __ degrees Celsius for ten minutes will destry botulism toxin.

answer

90

question

Botulism toxin acts by:

answer

inhibiting the release of acetlcholine

question

Probably the most potent toxin known is produced by:

answer

Clostridium botulinum

question

H.pylori can be detected by which of the following methods:
-stool samples
-breath test
-blood culture
-increased urea concentrations

answer

breath test

question

All of the following statements about staphylococcal food poisoning are true except:
-suspect foods are those not cooked before eating
-it can be prevented by refrideration
-it can be prevented by boiling foods for 5 minutes before eating
-it is treated by replacing water and electrolytes
-it is characterized by rapid onset and short duration of symptoms

answer

it can be prevented by boiling foods for 5 minutes before eating

question

Which one of the following is not known to be a method for the transmission of brucellosis?
-cheese made from unpasteurized milk
-splashing milk into the eye
-accidental passage of fluid through skin abrasion
-the bite of a tick

answer

the bite of a tick

question

After recovery from typhoid fever, the carriers may harbor the organism in their:

answer

gall bladder

question

One of the most important factors in controlling foodborne and waterborne disease is to:

answer

educate people to methods of sanitation and personal hygiene

question

The antibiotic ceftriaxon is used to treat:

answer

typhoid fever

question

What disease can be spread by household pets like ducks, tortoises and iguanas?

answer

Salmenella enterica serotypes

question

Which one of the following is not associated with E. coli 0157:H7?
-rice water stools
-hemorrhagic colitis
-hemolytic uremic syndrome
-colonic perforation

answer

rice water stools

question

This is the most commonly reported bacterial cause of gastroenteritis in the US. The illness affects over 2.5 million people and causes about 100 deaths each year.

answer

Staphylococcus aureus

question

A distinguishing feature of disease caused by Brucella species is the:

answer

alternating periods of fever and relief

question

The gastrointestinal infection caused by Vibrio vulnificus is characterized by all of the following except:
-epticemia
-necrotic skin lesions
-increased stomach acid production
-severe abdominal cramps

answer

increased stomach acid production

question

Anthrax may be acquired by all of the following methods except:
-consumption of food from vacuum sealed jars
-inhalation of airborne spores
-contact with infected animals
-consumption of contaminated meat
-contact with animal products

answer

consumption of food from vacuum sealed jars

question

The toxins produced by Clostridium tetani:

answer

induce controlled contraction of the muscle

question

the symptoms of tetanus are due to:

answer

deep puncture wounds

question

Which of the following describes the Yersina pestis:
-an aerobic spore forming rod
-an anaerobic gram-negative rod with bipolar staining
-a gram-negative rod with bipolar staining
-a gram-positive aerobic coccus displaying metachromatic granules
-an aerobic spore forming rod

answer

a gram-negative rod with bipolar staining

question

The primary mode of transmission fro Rocky Mountain spotted fever is:

answer

bite of an infected tick

question

Epidemic typhus is likely to occur where sanitation is lacking and where hygiene is poor because:

answer

lice flourish under these conditions

question

Which of the following pairs is not correctly matched for the gram reaction?
-tularemia--gram-negative
-anthrax--gram-positive
-lyme disease--gram-negative
-bubonic plague--gram-positive
-tetanus--gram positive

answer

bubonic plague--gram-positive

question

Leptospirosis may post a threat to those who:

answer

work with barnyard animals or household pets

question

Two forms of disease associated with Listeria monocytogenes are

answer

fetal damage and meningitis

question

Endemic typhus may be expected to occur where there are:

answer

extensive populations of rodents and fleas

question

Anthrax may be treated with antibiotics because:

answer

anthrax spores germinated into vegetative cells

question

Infections of muscle tissue due to Clostridium perferingens are accompanied by:

answer

gas in the muscle tissue

question

Clostridium perfringens exists widely in the soil and in the spore form in the:

answer

intestines of many humans and animals

question

Endemic typhus occurs sporadically in human populations because:

answer

fleas are not natural parasites of humans

question

The lockjaw associated with tetanus arises from:

answer

generalized muscle stiffness in the jaw

question

All of the following pairs of diseases and modes of transmission are correct except:
- scrub typhus and the mite
-trench fever and the louse
-bubonic plague and the flea
-endemic typhus and the mite
-endemic typhus and the flea

answer

endemic typhus and the mite

question

The large joints can become stiff and swollen with arthritis as a complication of:

answer

lyme disease

question

The flea is important in the transmission of:

answer

Bubonic plague

question

All of the following apply to lyme disease except:
-the causative organism is Borrelia bugdorferi
-transmission is by the Xenopsylla flea
-the disease was unknown before the 1970s
-treatment is possible with penicillin or tetracycline

answer

transmission is by the flea

question

A zoonosis is a disease:

answer

transferred from animals to humans

question

Woolsorter's disease is another name for:

answer

anthrax

question

;
A disease caused by a spirochete is:

answer

leptospirosis

question

All of the following diseases are caused by spore forming organisms except:
-anthrax
-tetanus
-gas gangrene
-bubonic plague

answer

bubonic plague

question

;
An antitoxin is an affective treatment for:

answer

tetanus

question

;
One of the distinctive characteristics of bacteria causing bubonic plague is:

answer

bipolar staining

question

;
A disease communicated by respiratory droplets is:

answer

pneumonic plague

question

;
The organism that causes Rocky Mountain spotted fever is:

answer

Rickettsia rickettsii

question

The rickettsial disease which shares with plague, smallpox and cholera the distinction of having caused pandemics that have significantly reduced the human population is:

answer

epidemic typhus

question

When it grows in the dead, anaerobic tissue of a wound, Clostridium perfringens:

answer

produces large amounts of gas

question

;
A zoonosis is a disease:

answer

transfered from animals to humans

question

;
The "second most powerful toxin known to science" is produced by:

answer

Clostridium tetani

question

;
;
Another name for tularemia is:

answer

rabbit fever

question

;
A disease spread by ticks and causing skin ulcers is:

answer

tularemia

question

-associated with rat infestations
-due to gram-negative rod which shows bipolar staining
-may develop into septicemic and pneumonic stages
-organs fill with bloody black fluid;

answer

bubonic plague

question

-symptoms caused by powerful endotoxin
-sometimes called woolsorter's disease
-common in cows and sheep but not dogs or cats
-caused by gram-positive aerobic sporeforming rod
-organism used to satisfy koch's postulates

answer

anthrax

question

-transmitted by ticks
-due to a species of rickettsia
-accompanied by a maculopapular rash
-crusted boil like lesions on skin
-diagnosis by well-felix reaction

answer

Rocky Mountain spotted fever

question

-accompanied by contractions of the body's muscles
-immunization rendered by injection of toxoid
-vaccine included in the DTaP series
-transmitted by anaerobic soilborne spores

answer

tetanus

question

The organism of gonorrhea is rarely contracted:

answer

from a dry surface such as a toilet seat

question

What disease can be transmitted to the fetus from an infected pregnant female?

answer

syphilis

question

The organism of leprosy belongs to the same genus as:

answer

tubercle bacillus

question

The normal microbiota of the adult vagina consist primarily of:

answer

lactobacillus

question

What is trachoma?

answer

a chlamydial disease of the eyes

question

All of the following are characteristic signs of secondary syphilis except:
-flat wart-like skin lesions
-gummae
-swollen lymph glands
-patchy loss of hair and eyebrows

answer

gummae

question

Infection due to Haemophilus ducreyi may be identified by the isolation of:

answer

gram-negative rods from the genital papules

question

Which of the following pairs is mismatched?
-yaws--gram-negative cocci
-gohorrhea--gram-negative cocci
-chancroid--gram-negative rod
-syphilis--gram-negative spirochete

answer

yaws--gram-negative cocci

question

What is not a cause of nongonococcal urethritis?
-chlamydia
-mycoplasma
-neisseria
-ureplasma

answer

neisseria

question

Nosocomical diseases are:

answer

acquired during hospitalization

question

Species of Baceroides:

answer

inhabit the large intestines and feces of most individuals

question

The chancre is a painless, circular, purplish ulcer associated with:

answer

primary syphilis

question

Alpingitis, a possible complication of gonorrhea, is observed as a:

answer

blockage of the fallopian tubes

question

The similarities of organisms and symptoms have led many microbiologists to believe there is a relationship between:

answer

yaws and syphilis

question

A man had fever, malaise, and a rash on his chest, arms and feet. He also had an ulcer on his penis two months earlier. What stage of the disease is the patient in?

answer

secondary

question

The greatest single cause of blindness in the world is:

answer

neonatal gororrheal optalmia

question

A newborn's eyes are treated with an antibiotic when?

answer

always

question

;
What infection is caused by S. aureas?

answer

pimples, stys, boils, and carbuncles

question

A 17-year-old male has pus-filled;cysts;on his face and upper back. Microscopic examination reveals gram-positive rods. This infection is caused by:

answer

Propionibacterium acnes
;
Propionibacterium acnes

question

Among the most common opportunistic bacteria that can cause nosocomical disease are all of the following except:
-enterobacter aerogenes
-mycobacterium leprae
-pseudomonas aeroginosa
-serratia marcescens

answer

Mycobacterium leprae

question

Staphylococcus aureus;has been linked to all of the following conditions except:
-impetigo contagiosum
-toxic shock syndrome
-bejel and pinta
-scalded skin syndrome
-boils and carbuncles

answer

bejel and pinta

question

;
;
Pseudomonas aeruginosa;is an:

answer

endogenous organism that causes burn infections

question

;
One of the difficulties in controlling gonorrhea is the fact that:

answer

50% of female infections may be asymptomatic

question

;
;
Gummas are:

answer

lesions, which destroy with elastic tissue and weaken major blood vessels

question

;
;
Chlamydia trachomatis causes:

answer

nongonococcal urethritis

question

;
Pseudomonas aeruginosa;is a severe problem in burn infections. This is due in part to the fact that:

answer

the bacterium has developed resistance to many antibiotics

question

;
Acute nectrotizing ulcerative gingicitis (NGU) is another name for:

answer

trench mouth

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