causative agents/vectors

Question 1

early infection in pacemaker infection

Answer 1

Staphylococcus aureus or epidermidis

Question 2

major causes of lung abscess

Answer 2

Type 3 Streptococcus pneumoniae and S. aureus

Question 3

rust colored sputum

Answer 3

S. pneumoniae

Question 4

brown “currant” jelly sputum ; bulging fissure sign; associated with herpes labialis

Answer 4

K. pneumoniae

Question 5

bilateral lower lobe infiltrates

Answer 5

P. aeruginosa

Question 6

more prominent cause of pneumonia in the summer; can affect other organs

Answer 6

Legionella

Question 7

most common cause of bacterial pneumonia in patients with HIV

Answer 7

S. pneumoniae

Question 8

50% to 80% of all infectious diarrhea

Answer 8

Norovirus

Question 9

most common cause of puerperal mastitis

Answer 9

Staphylococcus aureus

Question 10

leading cause of viral meningitis worldwide

Answer 10

Enteroviruses

Question 11

VP shunt infection predominant organism

Answer 11

Staphylococcus epidermidis

Question 12

most common cause of meningitis in children with implants

Answer 12

S. pneumoniae

Question 13

most common causative agent of Acute bacterial dacroadenitis

Answer 13

S. aureus

Question 14

Herpangina

Answer 14

coxsackievirus A16 and human enterovirus 71

Question 15

causative agent of severe form of hand-foot-and-mouth disease in Southeast Asia

Answer 15

Enterovirus 71

Question 16

Erythema Infectiosum (Fifth disease)

Answer 16

human parvovirus B19

Question 17

most common cause of UTI in children

Answer 17

E. coli

Question 18

most common pathogens of Periorbital cellulitis

Answer 18

S. pneumoniae and Streptococcus pyogenes

Question 19

Most common of Acute Otitis Externa (AOE)

Answer 19

Pseudomonas aeruginosa

Question 20

Most common bacterial pathogens of Acute Otitis Media (AOM)

Answer 20

Streptococcus pneumoniae (23.6%), non-typeable Haemophilus influenzae (29.1%), Streptococcus pyogenes (3.7%), and Moraxella catarrhalis (2.8%)

Question 21

most frequently cause of Viral conjunctivitis in childhood

Answer 21

adenovirus

Question 22

Most commonly isolated pathogen obtained from culture at bronchoscopy in bacterial tracheitis

Answer 22

S. aureus

Question 23

more common causative agent in those with underlying heart disease of infective endocarditis

Answer 23

Viridans streptococci

Question 24

most common cause of diarrhea without vaccination

Answer 24

rotavirus

Question 25

most common cause of diarrhea with vaccination

Answer 25

norovirus

Question 26

most common organism reported on blood culture in sepsis

Answer 26

staphylococcus

Question 27

single most common cause of endocarditis

Answer 27

staphylococcus

Question 28

erysipelas is commonly caused by

Answer 28

B-hemolytic streptococci

Question 29

Chancroid is commonly caused by

Answer 29

Haemophilus ducreyi

Question 30

Lymphogranuloma venereum is caused by

Answer 30

C. trachomatis (L1, L2, and L3)

Question 31

second most common cause of endocarditis which tends to be indolent

Answer 31

Streptococci

Question 32

vector that transmits malaria a protozoan disease

Answer 32

Female Anopheles mosquito

Question 33

most commonly involved bacteria in epidural abscess

Answer 33

S. aureus

Question 34

most commonly cultured agent is, which accounts for nearly half of all shunt infections

Answer 34

Staphylococcus epidermidis

Question 35

natural host of P. knowlesi

Answer 35

Macaques (old world monkeys)

Question 36

dinoflagellate Gambierdiscus toxicus produces

Answer 36

Ciguatera Poisoning

Question 37

vector of Lyme Disease

Answer 37

B. burgdorferi

Question 38

principal vector of Babesiosis

Answer 38

Ixodes ticks

Question 39

vector of human monocytic ehrlichiosis

Answer 39

Ehrlichia chaffeensis

Question 40

vector of Ehrlichiosis, Southern Tick-Associated Rash Illness (STAR)

Answer 40

Lone star tick (Amblyomma americanum)

Question 41

vector of Anaplasmosis

Answer 41

Black-legged tick (I. scapularis and I. pacificus)

Question 42

causative agent of Colorado Tick Fever

Answer 42

RNA virus of the genus Coltivirus in the family Reoviridae

Question 43

principal vector of Colorado Tick Fever

Answer 43

wood tick, D. andersoni

Question 44

Francisella tularensis zoonotic vectors

Answer 44

Dermacentor species (wood tick, dog tick) and the Amblyomma species (lone star tick)

Question 45

vector of relapsing fever

Answer 45

Ornithodoros ticks

Question 46

principal vector of pulmonary plague (Yersinia Pestis)

Answer 46

Rodent Flea

Question 47

the primary vector of Hantavirus

Answer 47

deer mouse (Peromyscus maniculatus)

Question 48

diseases that cause severe headache and fever

Answer 48

malaria, ricketssial disease, dengue, typhoid, human African typanosomiasis

Question 49

vector for dengue fever “break bone fever”

Answer 49

Aedes aegypti mosquito

Question 50

vector for Japanese encephalitis flavivirus

Answer 50

Culex mosquito

Question 51

definitive T. solium hosts

Answer 51

humans

Question 52

transmits nematode, Onchocerca volvulus, causing onchocerciasis (River Blindness)

Answer 52

female black fly