FLEAS PHE 02

  1. FLEAS PUBLIC HEALTH
    The bites of some species can cause
    flea allergy dermatitis
  2. FLEAS PUBLIC HEALTH
    Allergic responses also can result from contact with, or inhalation of, flea products (e.g., larval BLANK).
    EXUVIAE
  3. FLEAS PUBLIC HEALTH
    Bites are characterized by a BLANK, or purpura pulicosa, surrounded by slightly swollen skin called roseola pulicosa
    tiny purplish spot
  4. FLEAS PUBLIC HEALTH
    Bites are characterized by a tiny purplish spot, or purpura pulicosa, surrounded by BLANK called roseola pulicosa
    slightly swollen skin
  5. FLEAS PUBLIC HEALTH
    The vast majority of flea bites experienced by humans result from the BLANK flea
    CAT FLEA
  6. FLEAS PUBLIC HEALTH
    CAT FLEA unrelenting biter that generally attacks humans on the
    ankles
  7. FLEAS PUBLIC HEALTH
    CAT FLEA BLANK tend to be more commonly bitten than BLANK suggesting an attraction to BLANK
    • WOMEN,
    • MEN,
    • FEMALE HORMONES
  8. FLEAS PUBLIC HEALTH
    HUMAN FLEA P. simulans sometimes infests households and has been recorded to cause BLANK in humans in western North America.
    DERMATITIS
  9. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES typically occurs in persons who have become hypersensitive to flea saliva.
    FAD (flea allergy dermatitis, also sometimes called flea-bite dermatitis)
  10. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES In sensitized in-dividuals, bite sites typically develop into P_, causing a form of papular urticaria often with associated wheals, especially in children
    papules
  11. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES In sensitized in-dividuals, bite sites typically develop into papules, causing a form of papular urticaria often with associated W_, especially in children
    wheals
  12. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES In sensitized in-dividuals, bite sites typically develop into papules, causing a form of papular urticaria often with associated wheals, especially in BLANK
    children
  13. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES In sensitized in-dividuals, bite sites typically develop into papules, causing a form of papular urticaria often with associated wheals, especially in C_
    children
  14. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES With time and repeated exposure to flea bites, BLANK may reduce the severity of the dermatitis without medical intervention
    hyposensitization
  15. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES The administration of BLANK or desensitizing antigens can be helpful for some hypersensitive individuals.
    CORTICOSTEROIDS
  16. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES The administration of corticosteroids or BLANK BLANK can be helpful for some hypersensitive individuals.
    DESENSITIZING ANTIGENS
  17. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES People can also become sensitized to FLEA FECES and particles of exoskeletons upon contacting or inhaling them in house dust.
    FLEA FECES
  18. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES People can also become sensitized to flea feces and particles of EXOSKELETONS upon contacting or inhaling them in house dust.
    EXOSKELETONS
  19. FLEAS PUBLIC HEALTH
    FLEA ASSOCIATED ALLERGIES People can also become sensitized to flea feces and particles of exoskeletons upon contacting or inhaling them in BLANK BLANK.
    HOUSE DUST
  20. FLEAS PUBLIC HEALTH
    is caused by infection with Yersinia pestis, a Gram-negative coccobacillus bacterium
    Plague
  21. FLEAS PUBLIC HEALTH
    PLAGUE The second pandemic, usually referred to as the BLANK, originated in central Asia in the 14th century and spread to Europe along developing trade routes between
    these two continents.
    BLACK DEATH
  22. FLEAS PUBLIC HEALTH
    PLAGUE In addition to bites from infected fleas, plague infections can result from direct contact with BLANK infected with Y. pestis, or rarely, from inanimate
    objects harboring the pathogen.
    moribund or deadmammals
  23. FLEAS PUBLIC HEALTH
    PLAGUE the pathogen typically enters the body through BLANK. Inhalation infection also can occur from BLANK. pestis.
    • skin lesions
    • aerosolized
  24. FLEAS PUBLIC HEALTH
    PLAGUE Two ecological forms of plague =

    (1)
    urban plague carried by domestic rats and their fleas
  25. FLEAS PUBLIC HEALTH
    PLAGUE Two ecological forms of plague =

    (2) wild-rodent plague maintained enzootically in several species of mainly rodents and their fleas in
    rural areas distant from human populations.
  26. FLEAS PUBLIC HEALTH
    PLAGUE Plague-infected BLANK have been found in some towns in the western United States.
    tree squirrels
  27. FLEAS PUBLIC HEALTH
    PLAGUE The disease is often severe in BLANK, which can serve as a source of infected fleas to households.
    domestic cats
  28. FLEAS PUBLIC HEALTH
    PLAGUE Bites, scratches, or inhalation of infectious aerosols from infected BLANK also can disseminate Y. pestis.
    cats
  29. FLEAS PUBLIC HEALTH
    PLAGUE Human plague cases acquired from domestic cats have
    increased in the United States
  30. FLEAS PUBLIC HEALTH
    PLAGUE A susceptible flea becomes infected after imbibing plague BLANK in its blood meal from an infected host
    bacilli
  31. FLEAS PUBLIC HEALTH
    PLAGUE The bacterium invades the flea BLANK where under suitable conditions, it multiplies rapidly, culminating in complete blockage of the
    gut anterior to the proventricular spines
    midgut
  32. FLEAS PUBLIC HEALTH
    PLAGUE The bacterium invades the flea midgut where under suitable conditions, it multiplies rapidly, culminating in complete blockage of the
    gut anterior to the proventricular BLANK
    spines
  33. FLEAS PUBLIC HEALTH
    PLAGUE This proventricular blockage results from
    C_ of the bacteria several days after ingestion
    CLUMPING
  34. FLEAS PUBLIC HEALTH
    PLAGUE Although some gut blockages may clear spontaneously, persistent BLANK of the flea gut is
    central to efficient transmission of Y. pestis
    BLOCKAGE
  35. FLEAS PUBLIC HEALTH
    PLAGUE Blocked fleas are BLANK of ingesting a blood meal from a host.
    INCAPABLE
  36. FLEAS PUBLIC HEALTH
    PLAGUE Feeding attempts by BLANK fleas result in the
    drawing of blood into the esophagus followed by
    regurgitation of the blood meal into the host
    BLOCKED
  37. FLEAS PUBLIC HEALTH
    PLAGUE Feeding attempts by blocked fleas result in the
    BLANK OF BLANK into the esophagus followed by
    regurgitation of the blood meal into the host
    drawing of blood
  38. FLEAS PUBLIC HEALTH
    PLAGUE Feeding attempts by blocked fleas result in the
    drawing of blood into the esophagus followed by
    BLANK of the blood meal into the host
    REGURGITAION
  39. FLEAS PUBLIC HEALTH
    PLAGUE Infection results when plague WHAT are
    regurgitated with the blood meal into the host.
    BACILLI
  40. FLEAS PUBLIC HEALTH
    PLAGUE Infection results when plague bacilli are
    regurgitated with the WHAT WHAT into the host.
    BLOOD MEAL
  41. FLEAS PUBLIC HEALTH
    PLAGUE Fleas with gut blockages are
    WHAT and make repeated, aggressive feeding attempts
    HUNGRY
  42. FLEAS PUBLIC HEALTH
    PLAGUE Fleas with gut blockages are hungry and
    make repeated, aggressive feeding attempts. This can
    result in the infection of WHAT.....
    several different hosts and amplification of an epidemic.
  43. FLEAS PUBLIC HEALTH
    PLAGUE Unless the gut blockage clears, the
    infected flea succumbs to WHAT... itself becoming a victim of plague.
    starvation, dehydration, or toxicity from bacterial metabolites,
  44. FLEAS PUBLIC HEALTH
    PLAGUE Although Y. pestis transmission by fleas is facilitated by
    proventricular blockage, some fleas can transmit before or
    without blockage formation in a process called
    early-phase transmission
  45. FLEAS PUBLIC HEALTH
    PLAGUE There are three recognized clinical forms of plague
    infection:

    WHAT
    septicemic,
    and pneumonic
    bubonic
  46. FLEAS PUBLIC HEALTH
    PLAGUE There are three recognized clinical forms of plague
    infection:

    bubonic,
    WHAT
    and pneumonic
    septicemic
  47. FLEAS PUBLIC HEALTH
    PLAGUE There are three recognized clinical forms of plague
    infection:

    bubonic,
    septicemic,
    and WHAT
    pneumonic
  48. FLEAS PUBLIC HEALTH
    The most form of plague is WHAT, which
    usually results from the bites of infected fleas but
    can be caused by handling infectious mammal carcasses
    BUBONIC
  49. FLEAS PUBLIC HEALTH
    BUBONIC PLAGUE is characterized by grossly enlarged, tender, pe-
    ripheral WHAT WHAT called buboes (singular, bubo)
    LYMPH NODES
  50. FLEAS PUBLIC HEALTH
    BUBONIC PLAGUE swollen lymph nodes usually occur in the
    WHAT OR WHAT region and are teeming with plague bacilli.
    AXILLARY/ARM PIT OR INGUINAL/GROIN REGION
  51. FLEAS PUBLIC HEALTH
    SEPTICEMIC PLAGUE the pathogen initially bypasses or
    overwhelms the peripheral lymph nodes and invades WHAT...
    deeper recesses of the body
  52. FLEAS PUBLIC HEALTH
    SEPTICEMIC PLAGUE bloodstream is invaded rapidly by
    bacteria and capillary walls start to leak, often turning the skin WHAT
    black
  53. FLEAS PUBLIC HEALTH
    SEPTICEMIC PLAGUE The absence of external buboes to aid diagnosis,
    coupled with swift invasion of the blood, make this form of
    plague especially severe; many patients succumb to fatal WHAT
    SEPTICEMIA
  54. FLEAS PUBLIC HEALTH
    The most life-threatening form of plague is
    pneumonic plague (plague pneumonia)
  55. FLEAS PUBLIC HEALTH
    PNEUNOMIC PLAGUE patients have a WHAT infection of Y. pestis and
    can cough or sneeze infectious, aerosolized bacteria into the environment
    LUNG INFECTION
  56. FLEAS PUBLIC HEALTH
    WHAT... can progress to pneumonic plague
    bubonic or septicemic plague
  57. FLEAS PUBLIC HEALTH
    PNEUMONIC PLAGUE some untreated patients
    die within a day of inhaling the pathogen.
  58. FLEAS PUBLIC HEALTH
    PNEUMONIC PLAGUE humans have contracted pneumonic plague after
    inhaling aerosolized bacilli expelled by infected
    household cats.
  59. FLEAS PUBLIC HEALTH
    caused by the rickettsial organism Rickettsia typhi (formerly Rickettsia mooseri)
    MURINE TYPHUS
  60. FLEAS PUBLIC HEALTH
    one of the most prevalent rickettsial diseases of
    humans, but it is underdiagnosed and its importance is
    generally unappreciated
    MURINE TYPHUS
  61. FLEAS PUBLIC HEALTH
    MURINE TYPHUS It usually is transmitted via infected
    flea feces
  62. FLEAS PUBLIC HEALTH
    MURINE TYPHUS When the bite site of an infected flea is WHAT
    rickettsiae from flea feces excreted next to the bite site gain access to
    the host through abraded skin.
    scratched
  63. FLEAS PUBLIC HEALTH
    MURINE TYPHUS under experimental conditions, some fleas also can transmit this pathogen via
    bite
  64. FLEAS PUBLIC HEALTH
    Tungiasis is the pathological condition resulting from
    infestation by flea species WHAT
    Chigoe
  65. FLEAS PUBLIC HEALTH
    TUNGIASIS Females of Tunga penetrans invade a
    site between the
    toes, beneath the toenails, or on the soles of the feet.
Author
ianquinto
ID
351434
Card Set
FLEAS PHE 02
Description
FLEAS PHE 02
Updated