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Viruses
Viruses - DNA and RNA
21
Nursing
Graduate
10/05/2014

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Cards

Term
DNA viruses (7)
Definition
- Papovaviruses
- Adenoviruses
- Herpesviruses
- Cytomegaloviruses
- Epstein-Barr Virus (EBV)
- Varicella Zoster Virus
- Poxvirus
Term
Papovaviruses
Definition
- most common infection = Verrucae (skin wart)
Term
Adenoviruses
Definition
- URI – common cold
- Pharyngoconjunctival fever, conjunctivitis
- Epidemic keratoconjunctivitis
- Pneumonia - sometimes
Term
Herpesviruses
Definition
- Type 1 (80% lips 20% genital) and type 2 (80% genitalia, 20% oral)
- Human the only known reservoir
- Direct contact
- Herpes labialis and genitalis
- Sporadic fatal encephalitis
Term
Cytomegalovirus
Definition
- Neoplastic, transplant, immunosupressed
Term
Epstein-Barr Virus (EBV)
Definition
- Infectious mononucleosis (Kissings disease) – enlarged and tender lymph nodes, fever, sore throat, disease of teenagers and young adults
- Heterophile antibody- diagnostic test
- African form of burkitt’s lymphoma, nasopharyngeal carcinoma
- nasal swab for EBV, then if positive, endoscopy for CA
Term
Varicella Zoster Virus
Definition
- Chicken pox and herpes zoster (shingles)
- don't need to culture, just treat
Term
Poxvirus
Definition
- Molluscum contagiosum - KIDS
- Skin disease afflicts children and young adults
- Shiny papules on skin and mucous membranes
- Self limited - goes away
- Good hygienic practices
Term
RNA viruses
Definition
- orthomyxoviruses
Term
Orthomyxoviruses
Definition
- Consists of one group - Influenza viruses
- Immunologic types A,B,C based on projecting glycoproteins that has hemagglutinin activities (HA) and neuraminidase activity (NA), H and N
- High frequency of antigenic variation
- Antigenic drift and antigenic shift (major change)
- Minor shift – endemic, major shift - epidemic
Term
Influenza A virus
Definition
- Influenza A viruses
- Most prone to antigenic change
- Four shifts since 1933
- Hemagglutinin inhibition (HA) and neuraminidase inhibition (NA)
- H0N1 > H1N1 >H2N2 > H3N2....H5N1
- Pandemic influenza A (H1N1) first reported in Mexico, 18,000 deaths
MOST COMMON
Term
Influenza - Transmission
Definition
- Interpersonal transfer of influenza by sneezing or coughing
- Aerosolization, nursing home, classrooms, ships
- Epidemic spread in populations that partial immunity
Term
Flu sx
Definition
- sudden onset high temperature>102, myalgia, sore throat, headache, cough, anorexia, and potentially pneumonia
- do not give bed rest and fluids, give tamiflu
Term
Cold viruses
Definition
- adenovirus, RSF, coronavirus, parainfluenza, rhinovirus
Term
Paramyxoviruses (4)
Definition
- Parainfluenza viruses – larygotracheobronchitis (croup), bronchiolitis and PNA
- Mumps virus - parotitis
- Measles virus
- Respiratory syncytial virus
Term
Picornaviruses
Definition
- Polioviruses – spinal poliomyetlitis
- Coxsackieviruses – myositis and herpangina (fever, headache, sorethroat, stiffneck, anorexia)
- Echoviruses – aseptic meningitis and enteritis, rash, rare
- Rhinoviruses – common cold (most common cause)
Term
Patient comes in w/ diffuse rash...no temperature, don't look too sick, still active, good appetite, had rash for last 3 days
Definition
- virus
- most likely echovirus, coxsackivirus
- no treatment
Term
rare causes of meningitis
Definition
coxsackivirus, echovirus
Term
Ebola
Definition
- people die of hematological changes causing hemorrhage
- decoagulation problem
- fever, nausea and vomiting, headache, muscular pain, malaise, inflammation of the pharynx, and diarrhea accompanied with bloody discharge, and the development of maculopapular rashes along with bleeding at other body orifices
Term
INFLUENZA-LIKE
Definition
- Adenovirus, RSV, coronaviruses, parainfluenza, rhinoviurses are easily confused
Term
rotavirus
Definition
GI
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