Flashcards in Set 28 Viruses and Prions Deck (50):
Which WBCs increase with a viral infection?
Where do viruses become active?
inside a cell
What do some viruses have?
an envelope around the capsid
What are prions?
infection particles, protein only, no nucleic acid
What do prions cause?
slow diseases called transmissible spongiform encephalopathies (CJD)
Which is more resistant viruses or prions?
How is a prion inactivated?
hypochlorite and autoclaving
Do prions cause an immune response or inflammation?
adeno, upper and lower resp tract inf (URI and LRI), conjuctivitis, diarrhea
picorna, URI pharyngitis, skin rash
What are the respiratory viruses?
adeno, echo, rhino, coxsackie, influenza A and B, and respiratory syncytial
URI, common cold
picnora, pleurodynia: pain of intercostal muscles due to irritation AKA "devil's grip", herpangina: vesiculo-ulcerative lesions, myocarditis, pancreatitis, hand foot mouth
Influenza A and B:
respiratory syncytial virus:
paramyxo, bronhcitis, pneumonia (in children)
What are the digestive viruses?
mumps, noro, rota, hep A, B and C
paramyxo, pancreatitis and Orchitis (M) and oophoritis (F)
caliciviridae, nausea, vomiting, diarrhea, abdominal pain, and lethargy
reo, childhood diarrhea (most common)
picorna, acute viral hep, oral fecal, shorter, less virulent
hepanda, acute or chronic, blood, hospital workers
flaviviridae, Non-A and Non-B, causes infusuion Hep
What are the systemic viruses with skin eruptions?
measles, rubella, parvo, variola, vaccinia, varicella-zoster, herpes simplex I and II
paramyxo, measles (rubeola), Koplik spots, subacute sclerosing, panencephalitis
toga, German Measles, rubella
parvo, erythema infectiosum, aplastic anemia, slapped cheeks
pox, smallpox, "eradicated", guarnieri bodies
pox, cow pox, blisters hands, those with cowpox are immune from small pox
herpes, chickenpox, shingles
Herpes Simplex I:
cold sores, vesicular lesions Whitlow, found on thumb (child)
Herpes Simplex II:
herpes, cytomegalic inclusion
herpes, infectious mono, downy cell: atypical lymphocyte
HIV I and II:
retro, AIDS, ARC (diploid), ELISA, Western Blot
What are the systemic viruses with hematopoietic disorders?
cytomegalovirus, Epstein-Barr, and HIV I/II
What are the arboviruses?
dengue fever, yellow fever, ebola, and hanta
flaviviridae, hemorrhagic fever, Walter Reed
flaviviridae, fever, nausea, Aedes Aegypti mosquito, Walter Reed
filoviridae, fever, sore throat, headache, bleeding and death
bunyaviridae, fever, cough, lungs fill with fluid, death vector: rodent dust
What are the warty viruses?
papillomavirus (HPV) and molluscum
papova, condyloma, cervical carcinoma
pox, molluscum contagiosum (usually pink, benign)
What are the CNS viruses?
polio, rabies, JC, arboviral encephalitis, West Nile, Rift Valley
picorna, poliomyelitis, mostly from polio vaccine
rhabdo, negri bodies
progressive multifocal leukoencephalopathy
toga, Eastern or Western Equine, St Louis, Venezuelan, or California, vector :mosquito
flavi, fever, headache, rash (20-50%) neck stiffness, vector: mosquito