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56 Cards in this Set
- Front
- Back
dsDNA, icosahedral capsid, enveloped
most frequent isolate HSV, VZV, EBV, HHV-6, HHV-7, HHV-8 |
Herpesviridae
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Simplexvirus
transmitted by exposure to infected lesions encephalitlis, nenoatlal herpes, and herpetic keratitis |
HSV
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HSV-2: in neonates
HSV-1: older children and adults diagnose by brain biopsy/culture can detect early in CSF w/ molecular amplification |
HSV- Encephalitis
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infants
symptomatic and fatal vesicular skin lesions treat with acyclovir or vidarabine |
HSV-Neonatal herpes infection
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2nd most common cause of corneal blindness
tonsilitis and pharyngitis |
HSV- Herpetic Keratitis
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Varicellovirus
chicken pox (varicella) and shingles/reactivation (zoster) empryopathy-in pregnant women, <20 weeks life threatening in immunocomp. (treat with ZIG) |
HSV- Varicella-Zoster (VZV)
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Lymphocryptovirus
Infectious mono |
HSV- EBV
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fever malaise, exudative pharyngitis, lymphadenopathy, lasts 10-20 days
secreted in saliva infects B cells can develop> neoplasm |
EBV
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Roseolovirus
causes exanthem subitum (6th disease) -in children -monolike symptoms with focal encephalitis |
HSV- Human Herpesvirus-6
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Roseolovirus
causes fever and roseola- red/brown skin lesions |
HSV- HHV-7
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Rhadinovirus
"Kaposi sarcoma-associated herpesvirus" |
HSV- HHV-8
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dsDNA
icosahedral capsid, naked Adenovirus |
Adenoviridae
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Mastadenovirus
2nd most common cause of viral infant diarrhea acute pharyngitis (mimics group-A strep) conjunctivitis |
Adenovirus
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dsDNA
complex capsid with envelope (cytoplasmic) Smallpox |
Poxviridae
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Variolavirus and Orthopoxvirus
extinct since 1975 |
Smallpox
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dsDNA
icosahedral capsid, naked BK,JC,SV40, and Human wart viruses |
Papoviridae
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Polymavirus
associated with hemorrhagic cystitis in bone marrow transplant recipients JC- most important, causes destructive encephalitis |
Papoviridae- BK, JC, SV40 viruses
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Papillomavirus
warts, sexually transmitted venereal warts, and tumors (neoplasias) of respiratory and genitals |
Papoviridae- Human wart virus
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ssDNA
icosahedral capsid, naked Parvovirus B19 |
Parvoviridae
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Erythrovirus
erythema infectiosum (5th disease) -slapped cheek syndrome |
Parvovirus B19
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segmented ssRNA
helical capsid, enveloped Influenza A, B, C (Influenzavirus) |
Orthomyxoviridae
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ssRNA
non-segmented helical capsid, enveloped Measles, Mumps, Parainfluenza, Respiratory syncytial virus |
Paramyxoviridae
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Morbillivirus
pneumonia and encephalitis vaccine makes it rare |
Paramyxoviridae- Measles
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Paramyxovirus
infectiouns parotitis, aseptic meningitis vaccine greatly reduces cases |
Paramyxoviridae- Mumps
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Paramyxovirus
croup and bronchiolitis in <2 year olds mild respiratory illness in adults |
Paramyxoviridae- Parainfluenza
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Pneumovirus
recurrent respiratory infs. throughout life nosocomial diseases day cares (severe in young children) croup, bronchitis, bronchiolitis, and interstitial pneumonia |
Paramyxoviridae- Respiratory Syncytial Virus
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ssRNA
icosahedra; capsid, naked "small RNA viruses" Rhinovirus and Enterovirus |
Picornaviridae
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Enterovirus
common cold |
Picornaviridae- Rhinovirus
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Enterovirus
poliovirus, coxsackievirus, echovirus, and enteroviruses 68-71 |
Picornaviridae- Enteroviruses
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ssRNA
helical and enveloped (bullet shape) Rabies |
Rhabdoviridae
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Lyssavirus
fatal viral zoonosis most common bite transmitted virus (dogs) fatal if PEP injection not administered Neurotropic disease -death with in days of late stage symptoms |
Rabies
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ssRNA
helical, enveloped high fever, shock, multi. organ system involvement, and hemorrhage exposure to body fluids Marbugvirus Ebolavirus (Sudan strain 50%, Zare strain 90%) |
Filoviridae
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segmented, ssRNA
helical, enveloped transmitted by arthropods or rodents excreta California encephalitis virus and Hantavirus |
Bunyaviridae
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Bunyavirus
mosquitoes |
Bunyaviridae- California Encephalitis Virus
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Bunyavirus
Sin Nombre from aerosolized rodent feces causes HPS -hemorrhagic fever, kidney disease, acute respiratory failure, shock and renal failure |
Bunyaviridae- Hantavirus
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causes Human Gastroenteritis Virus (2)
acute vomiting/diarrhea, mild-selflimiting, non inflammatory |
Calciviridae and Reoviridae
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ssRNA
icosahedral, enveloped Norovirus & Human Gastroenteritis Virus |
Calciviridae
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dsDNA
icosahedral, naked Human Gastroenteritis Virus& Rotavirus -wheel-like -#1 cause viral infant diarrhea |
Reoviridae
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ssRNA
helical, enveloped colds and pneumonia SARS-COV -pandemic of respiratory disease, Hong Kong |
Coronaviridae
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ssRNA
icosahedral, enveloped Rubella virus |
Togaviridae
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Rubrivirus
acute febrile illness with macropapular rash -German measles (rash, face>body, lasts 3 days) transient arthritis or encephalitis transmitted by aerosols or transplacentally -1st trimester, 75% neonated deaf/blind |
Rubella Virus
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ssRNA
capsid unknown, enveloped Zoonotic- from rodent urine, feces, saliva Old World Arenavirus and New World Arenavirus |
Arenaviridae
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Arenavirus
Lymphatic choriomeningitis virus Lassa virus (W. Africa hemorrhagic fever) |
Avenaviridae- Old World Arenavirus
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Arenavirus
Tacaribe, Guanarito (Venezuelan hemorrhaic fever), Junin (Argentine h.f.) and Machupovirus (Bolivian h.f.) |
Avenaviridae- New World Arenavirus
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arthropod borne infection of small mammal, birds, and humans
caused by Togaviridae, Alphavirus and Flavavirus |
Arboviruses
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Group A- Arbovirus
ssRNA mosquito/ticks Eastern Equine Encephalitis Virus Western Equine Encephalitis Virus Venezuelan Equine Encephalitis Virus |
Togaviridae- Alphavirus
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Group B- Arbovirus
ssRNA icosahedral, enveloped mosquito/tick common-mild, febrils less common- severe, encephalitis, hemorrhaging, feverm and/or liver damage causes West Nile, Dengue, and Yellow Fever |
Togaviridae- Flavavirus
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ssRNA
icosahedral (with 72 external spikes), enveloped Human T-lymph Virus 1&2 and HIV |
Retroviridae
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Deltaretrovirus
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Retroviridae- HTLV- 1&2
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Lentivirus
sexual and parental transmission initial infection -transient febrile disease -lymphadenopathy, pharyngitis, rash -ARC -also leukoplakia (white lesion on tongue) 6 weeks p.i. -flu/mono like symptoms AIDS -T cells, CD4, <200/mm3 |
Retroviridae- HIV
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Hepatitus Viruses (5)
symptoms- anorexia, malaise, dark urine, pale stool, vomiting, headache, jaundice |
HAV
HEV HBV HCV HDV |
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transmission- enteric
classification- Picornavirus genome- ssRNA |
HAV
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transmission- enteric
classification- Hepevirus genome- ssRNA |
HEV
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transmission- parental
classification- Hepadnavirus genome-dsDNA causes Hepatitis |
HBV
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transmission- parental
classification- Flavavirus genome- ssRNA causes Hepatitis |
HCV
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transmission- parental
classification- Deltavirus genome- ssRNA causes Hepatitis |
HDV
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