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Ch. 34 vocabulary
viral Diseases of the Skin
| Question | Answer |
|---|---|
| gingivostomatitis | oral lesions caused by Herpes Simplex Virus I--lesions around and in much of the mouth--spread by direct contact--virus becomes latent in neurons that innervate face/mouth--only 1-2 blisters on reactivation--stress, ultraviolet light, some cosmetics, etc. |
| Herpes labialis | cold sores/fever blisters--caused by Herpes simplex virus |
| Herpes simplex virus (HSV) | 2 types--HSVI/HSVII |
| Hydrophobia | when rabid animal/human tries to swallow, throat muscles ccontract in painful spasm--animals refuse to even look at water and will drool rather than swallow saliva--death due to resp paralysis results after several days of sx |
| Kaposi's sarcoma | Human Herpes virus 8 (HHV8)--tumors appear as purplish-brown areas on skin--most seen in AIDS pts--isolated from saliva/semen--sexual contact primary mode of transmission--seen mostly in homosexual males--other skin ca/one type of lymphoma associated |
| Latency | person infected with herpes virus harbors viruses for life |
| Negri bodies | viral materials can be dx in brain tissue of biting animal by checking for black inclusions--rabies |
| Rabies | rabio--to rave, be mad--virus is bullet shaped, quite common in wild animals--raccoons/skunks--bitten/scratched contaminated with virus-containing saliva--infects all warm-blooded animals--abundant and wild--target organ is CNS-slow groing |
| Recurrence | Herpes viruses likkely may reactivate later in life to cause additional disease--may occur once or many times despite high Ab titers against viruses--usually reduced area of infection |
| Roseola | Human Herpes Virus 6--causes high fever that lasts 3-5 days with rash appearing at end of fever in about 10% of cases |
| Smallpox | lg virion with multilayered surface--complex structure--DNA--only virus eradicated--concern for bioterrorist usage-- |
| Warts | naked virions--DNA viruses--cuased by papilloma viruses--spread via direct contact with skin--grows slowly--causes plantar warts, flat warts, and condyloma acuminata--sexually transmitted warts grow on genitalia |
Created by:
heatherlvn
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