Shared Flashcard Set

Details

Microbiology Viruses
DNA viruses
27
Anatomy
1st Grade
05/17/2012

Additional Anatomy Flashcards

 


 

Cards

Term
Causes gingivostomatitis, keratoconjunctivitis, temporal lobe encephalitis
Definition
HSV-1

Can also cause genital herpes, but mostly around the lips

Lies dormant in sensory neurons, in trigeminal neurons
Term
When immune system lets down gaurd, usually causes painful vesicles in genital regions.
Definition
HSV-2

Transmission via genital/mucosal contact. All it takes is some intimate contact.

Babies can be at risk when born through infected vaginal canal.
Term
Primary infection causes chicken pox
Secondary infection leads to shingles
Definition
Human Herpes virus 3:
Varicella Zoster Virus (VZV)

Transmitted through respiratory secretions

Becomes latent in the Dorsal Root Ganglion. Group vesicles correspond into a single dermatone
Term
Herpes vesicle tissue spread on slide, applied stain with tzanck test. What is seen?

Infected cells are seen with?
Definition
Multinucleated giant cells

intranuclear Cowdry A inclusions
Term
Causes infectious mononucleosis. Infects B cells and causes posterior cervical lymphadenopathy
Definition
Epstein Barr virus

Causes atypical lymphocytosis (Downey cells) which are T cells that look weird and have foamy appearance
Term
EBV monospot detects what?
Definition
heterophile antibodies detected by agglutination of sheep RBC. (cold agglutins)

(Produces antibodies that for some reason like to agglutinate sheet blood)
Term
EBV associated with what neoplasms?
Definition
Hodgkin and Burkitt lymphomas
and nasopharyngeal carcinoma!

Remains latent inside body after acute infection
Term
Commonly spread congenitally, infected bodily fluids (saliva and breast milk). A part of the TORCH infections
Definition
Human Herpes virus 5:
Cytomegalovirus
Term
Owls eye inclusions in histology
Definition
Cytomegalovirus

Can cause blindness in HIV patients
Term
Children with 3-5 days of high fever. Fever breaks and then child gets head to toe rash.
Definition
Human Herpes virus 6:
Roseola (erythema infectiosum)
Term
Associated with HIV and more common in homosexual men
Highly vascular tumor of spindle cells (purplish appearance)
Definition
Human Herpes Virus 8:
Kaposi sarcoma

Can experience hemoptysis because
can also see a nodule on Xray.

These tumors can be aggressive and lethal
Term
Guanosine analog. First monophosphorylated by viral thymidine kinase. Phosphorylated to triphosphate active form that is incorporated into viral DNA
Definition
Acyclovir

Used for:
HSV
VZV
EBV

Start as soon as possible
Term
CMV does not use the same thymidase kinase as

Inhibits viral DNA polymerase
Definition
Ganciclovir

Used for CMV infections

Toxicity:
Bone marrow suppression, renal toxicity (inc BUN)
Term
Inhibits viral DNA pol II and binds to pyrophosphate binding site.
Does not require activation by viral kinase.
Definition
Foscarnet

Especially good for viruses that have HSV or CMV is not responding due to mutation in the gene for viral Thymidine kinase

Does NOT cause bond marrow suppression
Term
Uses reverse transcriptase to make DNA from RNA intermediate
Definition
HBV

Spread perenteral and sexual route
Term
Clinical course of HBV
Definition
Acute: Malase, anorexia, nausea vomiting and RUQ pain. Appear jaundiced

Chronic: Can spread disease to other people, and can lead to cirrhosis and Hepatocellular carcinoma (Carrier, cirrhosis, HCC)
Term
Single stranded RNA virus, transmitted via blood transfusions
Definition
HCV
Term
Treatment for HCV
Definition
Interferon alpha
ribiviron
Term
Uses HBV surface antigen for surface envelope. Use the same route of transmission
Definition
HDV

Usually infects simutaneously or superinfection of HBV
Term
Fecal-oral transmission
Picorna RNA virus
Definition
HAV

Asymptomatic in young children, more symptomatic in older individuals

Does not cause chronic infection, and resolves.
Term
Fecal-oral transmission
Transmitted enterically and causes water-borne epidemics
Definition
HEV

High mortality rate when it infects pregnent women. Causes fulminant hepatitis
Term
Double stranded DNA virus causing conjunctivitis
Definition
Adenovirus

Febrile pharyngitis
Acute hemorrhagic cystitis
Pneumonia
Diarrhea
Term
Single stranded DNA virus. Small virus that causes transient aplastic episode in sickle cell patients
Definition
Parvovirus B19

Also causes fifth's disease which causes "slapped cheek disease". Can also cause hydrops fetalis if its transmitted in utero

In adults, it resembles arthritis that resembles rheumatoid arthritis
Term
Types 1 and 2 cause
Types 6 and 11 cause genital warts
Types 16 and 18 cause cancer
Definition
HPV

16-18 cause cervical, vulvular, penile squamous cell carcinoma
Term
Progressive multifocal leukoencephalopathy in HIV patients
Definition
Polyomavirus family:
- JC Virus
Term
Enveloped virus eradicated from earth. but concerned about
Definition
Smallpox
Term
Flesh colored dome lesion with central umbilication
Definition
Molluscum contagiosum: Pox virus

Will go away in about 1 year.
Vaccinia- cowpox ("milkmaid's blisters")
Supporting users have an ad free experience!