UW+mehl. listeria 02-21 (1) Flashcards
Mehl. infection. if they say gram-positive rods, answer?
Listeria.
Mehl. Listeria can be contracted by the pregnant female via …..?2
soft cheeses and deli meats.
UW. table. pathogenesis? 3
Foodborne transmission
Bacterial invasion of intestinal epithelial cells
TRANSPLACENTAL PASSAGE TO FETUS
UW. table. CP in immunocompetent host?
Febrile gastroenteritis
UW. table. CP in immunocompromised, neonates, pregnant, elderly?
Invasive disease (eg sepsis, meningitis)
UW. table. Labs?
Gram positive rods on culture (eg stools, blood, CSF)
UW. table. Tx? 2
Supportive care for gastroenteritis in normal host
Parenteral antibiotics for invasive disease
UW case. buvo picnic + nausea, watery diarrhea, and muscle aches, but no rashes or joint pain. cause?
listeria monocytogenes
UW case. listeria vs S. aureus CP?
S.aureus = rare cause of intrauterine fetal demise
gastroenteritis dominated by nausea and vomiting.
Listeria - diarrhea
UW. The bacteria can replicate at cold temperatures (eg, refrigeration) and invade the intestinal mucosa once ingested, causing gastroenteritis (eg, fever, vomiting, diarrhea).
.
UW. listeria in healthy. CP?
are self-limited
UW. listeria in pregnant (relatively immunosuppressed). CP?
at increased risk of invasive disease (eg, bacteremia) and fetal infection via transplacental transmission.
UW. listeria. if infection in first/second trimester = 2 diseases?
Typically results in granulomatosis infantiseptica (ie, disseminated abscesses/granulomas) and possible intrauterine fetal demise.
UW. listeria. if infection in third trimester = diseases 3?
may be less severe and present as fetal distress, preterm delivery, or early-onset neonatal sepsis.
may be less severe and present as fetal distress, preterm delivery, or early-onset neonatal sepsis. TRIMESTER?
listeria. third trimester
Typically results in granulomatosis infantiseptica (ie, disseminated abscesses/granulomas) and possible intrauterine fetal demise.
listeria. first/second
UW. listeria. Foods avoided in pregnancy?
raw meats and vegetables, unpasteurized dairy products, and processed (eg, deli) meats.
UW. listeria. sanitary recommendations?
proper handwashing after handling soil or decaying vegetation (eg, gardening)
UW. Group B Streptococcus = can cause IUFD.
What CP of infection?
urinary tract infections rather than gastroenteritis.
UW. borelia burgdorferi. CP?
erythema migrans rather than gastroenteritis
+ adverse fetal effects are uncommon.
UW. Parvovirus CP?
can cause IUFD.
No gastroenteritis, it does not spread via food.
CP: arthralgias and arthritis (particularly of the small joints) and rash (not seen in this patient.
UW. S aureus?
Rarely IUFD.
Cause nausea and vomiting, not diarrhea.