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virology
virology
109
Medical
Graduate
01/31/2011

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Term
HERPES (basic)
Definition
DNA
Enveloped
2xstranded
Icosahedral
Term
Hepadna (basic)
Definition
DNA
Enveloped
2xstranded
Icosahedral

HBV
Term
Pox (basic)
Definition
DNA
Enveloped
2xstranded
Complex morphology
Term
Papova (basic)
Definition
DNA
Naked
2xstranded
Icosahedral
Term
Adeno (basic)
Definition
DNA
Naked
2xstranded
Icosahedral
Term
Parvo (basic)
Definition
DNA
Naked
Single Stranded
Icosahedral
Term
Picrona (basic)
Definition
RNA
Single stranded (+)
Naked
Icosahedral

HAV
Term
Calici (basic)
Definition
RNA
Single stranded (+)
Naked
Icosahedral

HEV
Term
Toga (basic)
Definition
RNA
Single stranded (+)
Envelope
Icosahedral
Term
Flavi (basic)
Definition
RNA
Single stranded (+)
Envelope
Icosahedral

HGV
Term
Corona (basic)
Definition
RNA
Single stranded (+)
Envelope
Helical
Term
Retro (basic)
Definition
RNA
Single Stranded (+)
Envelope
Helical
Term
Bunya (basic)
Definition
RNA
Single Stranded (-)
Enveloped
Helical
Term
Orthomyxo (basic)
Definition
RNA
Single Stranded (-)
Enveloped
Helical
Term
Paramyxo (basic)
Definition
RNA
Single Stranded (-)
Enveloped
Helical
Term
Rhabdo (basic)
Definition
RNA
Single Stranded (-)
Enveloped
Bullet-shaped
Term
Arena (basic)
Definition
RNA
Single Stranded (-)
Enveloped
Helical
Term
Filo (basic)
Definition
RNA
Single Stranded (-)
Enveloped
Helical
Term
Reo
Definition
RNA
Double Stranded
Naked
Icosahedral
Term
Aspirin during influenza or varicella
Definition
Reye's Syndrome --> massive liver &or brain damage. Only give Acetaminophen for fever

cause is unknown
Term
Diagnostic tests for influenza
Definition
1) Culture (check HA/NA)
2) Rapid flu test
3) PCR
4) Serological analysis: 4-fold increase in specific antibody over 2 weeks
Term
Amantadine & Rimantidine (basic action)
Definition
prevent uncoating of influenza A
Term
Sanamavir & Oseltamivir (basic action and route of administration)
Definition
Neuraminidase inhibitors

Sanamavir (inhaled)
Oseltamivir (oral)
Term
Palivisumab
Definition
MAB against RSV
Term
Stages of Measles (rubeola)
Paramyxoviridea
Definition
10 day incubation-->3-4 day prodrome-->Koplik's spots(last 2 days of prodrome)-->6 day maculopapular rash
Term
Tropic Spastic Paraparesis (cause)
Definition
Human T-cell Leukemia Virus (HTLV1). first retrovirus discovered in humans (1970s)
Term
src (meaning)
Definition
Rouse Sarcoma Virus Oncogene
Term
zidovudine
Definition
reverse transcriptase inhibitor for HIV treatment (preliminarily terminates DNA chains; thymidine analog)
Term
Candida esophagitis; pneumocystis carinii pneumonia; and karposi's sarcoma. what are these diseases exemplary of:
Definition
AIDS
Term
Normal T-cell count
decline per year in HIV
count at start of symptoms (AIDS)
Definition
1000 cells/uL
60 cells/ul/yr
200-400 cells/ul
Term
In HIV, for T-cell counts:
at 400 cells/ul these infections occur
at 200 cells/ul these infections occur
at 50 cells/ul these infections occur
Definition
- Athletes foot, candida (thrush), TB

- Pneumocystis carinii, cryptococcus neoformans, toxoplasma gondii

- mycobacterium avium intracellulare; cytomegalovirus
Term
three proteins necessary for HIV fusion with cells. which one, when deficient, provides resistance to HIV
Definition
CD4, fusin and CKR5.

CKR5 deficiency = resistance
Term
opportunistic bacterial infections common in AIDS
Definition
staph (aureus&epidermis, from line placement)

B-cell error: strep pneumonia; Haemophilus influenza

TB
MAC (mycobacterium avium-complex)
Term
fungal infections in AIDS
Definition
Candida Albicans (thrush)

Cryptococcal Neoformans (meningitis: LP if febrile)

Histoplasma capsulatum; coccidioides immitis
Term
viral infections with AIDS
Definition
Herpes Zoster

Epstein Barr Virus, causes oral hairy leukoplakia which is different than thrush because it doesn't come off with a tongue blade

Herpes simplex

Cytomegalovirus
Term
protozoal infections in AIDS
Definition
Pneumocystis carinii pneumonia

Toxoplasma gondii

cryptosporidium, microsporidium, isospora
Term
criterion for diagnosing AIDS: CD4 count, test, and something else
Definition
<200 cells/ul; ELISA or wester; defining infection
Term
prophylactic treatment for AIDS:
Definition
sulfamethoxazole, trimethoprim, azithromycin or clarithromycin (for MAI)
Term
CMV treatment in AIDS (or generally?)
Definition
ganciclovir or foscarnet
Term
Herpes zoster treatment (AIDS)
Definition
acyclovir
Term
AIDS treatment for candida albicans:
- thrush
- systemic
Definition
- clotrimazole, nystatin, or fluconazole (enteric route)

- intravenous amphotericin B or fluconazole
Term
name that virus family:
1) can develop into a latent state
2) subgroup 'alpha' has cytopathic effects that cause cellular syncytium
3) kept at bay by cellular immunity
Definition
Herpesviridae
Term
make up alpha subgroup of herpesviridae
Definition
simplex 1&2 and zoster
Term
herpesviridae beta subgroup:
Definition
CMV
Term
herpesviridae gamma subgroup:
Definition
epstein barr
Term
1) gingivostomatitis
2) reactivation
3) herpatic keratitis (most common cause of corneal blindness)
4) encephalitis (most common cause of viral encephalitis and is treatable)
Definition
4 signs and symptoms of HSV1
Term
TORCH infections and significance
Definition
toxoplasmosis
rubella
cytomegalo
HSV
Syphilis

these infections can have vertical transmission
Term
zoster treatment (3 types)
Definition
1) vaccine
2) Ig's for immunocompromised (don't help if rash has already developed)
3) intravenous acyclovir
Term
1) asymptomatic (80%)
2) congenital
3) mononucleosis
4) reactivation in immunocompromised (causing blindness, pneumonia and death)
Definition
CMV infection outcomes (4)
Term
congenital CMV infection causes
Definition
- most common cause of viral mental retardation
- microcephaly
- deafness & seizures
Term
CMV in immunocompromised: AIDS vs bone-marrow-transplant
Definition
AIDS: retinitis and colitis
Bone Marrow Transplant: Pneumonia
Term
what is EBV's target to enter cells
Definition
C3d receptor
Term
HHAPPPY acronym for DNA viruses
Definition
Herpesviridae
Hepititisviridae
Adenovirus
Poxviridae
Papillomavaviridae
Parvoviridae
Polyomaviruses
Term
what are the reservoirs for smallpox virus and what family does it belong to
Definition
HUMAN ONLY!
poxviridae
Term
molluscum contagiosum family and where do you see them
Definition
poxviridae; AIDS patients
Term
3 types of papovaviridae
Definition
PApilloma virus: warts/cervical cancer
POlyomavirus: human JK and BK
simian VAcuolating: not in humans
Term
what does Papilloma virus cause?
Definition
warts and cervical cancer
Term
types of polyomavirus

which one is opportunistic?

which one causes white matter damage?

which one is benign and common?
Definition
BK & JC

-JC
-JC
-BK
Term
list upper respiratory tract viral illnesses in children in order
Definition
1) RSV
2) Parainfluenza
3) Rhinovirus
4) Adenovirus (can cause lower at times)
Term
erythema, viral cause and symptoms
Definition
- Parvoviridae

"Fifths disease". Characterized by fever and 'slapped face' rash.
Term
Arboviruses:
-derivative of name
-types
Definition
-ARthropod BOrne viruses
- Flaviviridae, Togaviridae, bunyaviridae
Term
Picornaviridae:
-where are they found
-types
Definition
-enteroviruses

-HAV, Poliovirus, coxsackie A&B, echovirus
Term
viruses that cause diarrhea
Definition
rotavirus, callciviridae
Term
what virus causes rabies?
Definition
Rhabdoviridae
Term
two types of toga virus that infect humans
Definition
Alpha (WEE, EEE, VEE)
Rubivirus
Term
reservoirs for Rubella
Definition
HUMAN ONLY
Term
rubella symptoms:
-in adults
-congenital
Definition
- head-to-toe "three day rash". very mild

-VSDs, patent DA, pulmonic stenosis, cataracts, chorioretinitis, microcephaly, mental retardation, deafness
Term
flaviviridae causes:
Definition
dengue
yellow fever
Term
yellow fever symptoms and vector
Definition
- hepatitis, fever, nausea, vomiting, backache
- mosquito
Term
dengue symptoms and vector
Definition
- extreme myalgia ("back-break fever"); DHV causes death in 10% afflicted.
-mosquito
Term
west nile:
-type of virus?
-vector(s)
-symptoms
Definition
-flaviviridae
-bird-->mosquito-->human
-mild flu, can cause encephalitis&death in elderly
Term
California encephalitis, Rift Valley Fever, and Hantavirus pulmonary syndrome are caused by:
Definition
Bunyaviridae

HPS should be considered in the differential of young person with influenza-like symptoms and pulmonary edema
Term
types of enteroviruses (5); what family do these belong to?
Definition
-HAV, Coxsackie A&B, echovirus, Polio, new enteroviruses
-picornaviridae
Term
Poliovirus:
- Family
- cells it infects
- mode of transmission
Definition
- picornaviridae
- peyer's patches (CD155), motor neurons
-fecal-oral
Term
3 types of polio infection:
Definition
1) asymptomatic
2) asymptomatic meningitis (mild fever)
Term
who developed first polio vaccine (formalin killed virus)
Definition
joseph salk
Term
name the symptoms that are associated with coxsackie A&B, Echovirus AND new enteroviruses
Definition
1) asymptomatic or mild febrile chill
2) respiratory symptoms
3) rashes
4) aseptic meningitis. the enteroviruses are most common cause of aseptic meningitis
Term
what is caused by:
-coxsackie A
-coxsackie B
Definition
- Herpangia

- Pleurodynia for respiratory; self-limiting or severe myocarditis/pericarditis. CB is the leading viral cause (>50%)
Term
which 2 viruses cause the common cold and which one is most common
Definition
rhino (~85%) corona (~15%)

(they are part of the picornaviridae family)
Term
name 2 types of virus that cause diarrhea:
Definition
calicivirae
rotovirus (infant mortality, severity second only to cholera)
Term
rhabdoviridae shape and most relevant virus
Definition
bullet shaped; rabies virus
Term
collection of rabies virions in the cell body of neurons are called:
Definition
Negri bodies
Term
incubation time and time from onset of symptoms to death for rabies infected person:
Definition
-weeks to years
- 1 to 2 weeks
Term
fasciculate definition
Definition
muscle twitch
Term
stages of symptoms in rabies infection
Definition
1) prodrome: flu-like symptoms with pain around wound and possible fasciculation
2) Acute encephalitis: meningismus, madness
3) Brainstem encephalitis: painful laryngeal contractions upon swallowing, i.e. 'foaming at mouth'
4) Death (certain if symptoms come on, 1 case of recovery, ever)
Term
Filoviridae viruses (2)
Definition
Ebola and marburg (massive hemorrhage and diarrhea)
Term
acyclovir and ganciclovir:
- what are they?
- mechanism of action?
- toxicities?
Definition
-Herpesviridae antivirals
- Nonfunctional guanine analogs

-acyclovir needs thymadine kinase (only present in herpes family with the exception of CMV)
- ganiciclovir can be toxic to rapidly dividing cells, so is only used in immunocompromised hosts: neutropenia&thrombocytopenia
Term
Foscarnet:
- what is it?
- how does it work?
- what does it treat
- side effects?
Definition
- antiviral phosphate analog

- inhibits DNA pol and RT

- Herpes(CMV-retinitis & acyclovir-resistant herpes in AIDS patients) and HIV(not very effective)

- reversible renal toxicity
Term
HAART
Definition
highly active antiretroviral therapy
Term
what is first line care for HAART therapy?
Definition
3 antiretrovirals: 2 nucleoside iRT's and 1 protease inhibitor
Term
Zidovudine (ZDV or AZT):
- what is it?
-
Definition
- NRTI; first line HIV drug

(HIV develops resistance fast, so must use with at least 1 other drug. can be used prenatally to prevent vertical HIV transmission)
Term
Lamivudine:
-what is it?
-what is it used for?
Definition
3TC
- NRTI
- used in combination with zidovudine for HIV; used singly or with IFN for HBV

(this drug has minimal side effects)
Term
Didanosine:
- what is it?
- contraindications?
Definition
ddI
- NRTI; purine nucleoside analog
- history of pancreatitis or things that would contribute to development of pancreatitis like drinking or hypertriglyceridemia

(can't tolerate acidic conditions, so antacids have to be taken with it)
Term
Zalcitabine:
-what is it?
Definition
ddC
- NRTI

(oral ulcers may develop; 3%)
Term
Stavudine:
-what is it?
Definition
d4T
- iRT
-NRTI
Term
Abacavir:
-what is it
Definition
-NRTI; newer(ish) drug with possibility of hypersensitivity reaction (5%)
Term
NRTI general side effects:
Definition
headache, nausea, rash, diarrhea, fatigue, abdominal pain, & insomnia
Term
ddI, ddC and d4T NRTI's all cause what?
Definition
peripheral neuropathy

(Didanosine, Zalcitibine, Stavudine)
Term
Nevirapine:
Definition
NNRTI; induces CYP450 system so don't use with drugs that are metabolized that way
Term
Delaviridine:
Definition
- NNRTI; metabolized by and inhibits CYP450
Term
Efavirenz:
Definition
- newer NNRTI; can cause neurological symptoms (if your patient starts dreaming of 'axe-wielding elves', you may have to discontinue)
Term
the 5 protease inhibitors: SRINA
Definition
saquinavir
ritonavir
indinavir
nelfinavir
amprenavir

all of these have some bad side effects, mostly gastrointestinal (diarrhea etc)
Term
If there is a needle stick (HIV), what is the treatment
Definition
triple therapy for 4 weeks (~75% reduction in infection)

-ZDV 3TC and indinavir is the most common
Term
Amantadine:
- what is it?
- what is it's action?
- what is it good for
Definition
"a man to dine"
- inhibits influenza A genome uncoating
- rimantadine is similar, but has fewer CNS side effects
Term
Orthomyxoviridae:
- how is it's RNA packaged
- what does it cause
-
Definition
- segmented on many strands (allows for quick adaptation and keeps it viable every flu season)

- influenza A, B and C. B & C are only in humans
Term
Paramyxoviridae:
- how is it's RNA packaged
- what is unique about HA and NA and what other proteins does it have?
- what does it cause
Definition
- single (-) strand
- HA and NA are on the same glycoprotein; it also has fusion
- Parainfluenza (croup is this upper respiratory etiology); RSV (#1 cause of pneumonia in children)
Term
Mumps:
-symptoms
Definition
swollen parotid gland (parotitis) and testis (orchitis)
Term
name symptoms of measles prodrome
Definition
conjunctivitis, photophobia, fever, rhinitis, cough
Term
how does the measles rash appear/disappear?
Definition
head-to-toe, disappears head-to-toe as well
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