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Ch. 25 vocabulary

Viral Diseases of the Respiratory Tract

QuestionAnswer
Adenoids (blank)
Adenoviruses naked, dsDNA-containing viruses for which there are at least 50 stereotypes--immunity lifeong and type specific--originally isolated from adenoids--latent in tissue for life--colds severe with fever--
Antigenic drift mutation change of hemagglutininand neuraminidase
Antigenic shift complete hemagglutinin gene change
Chicken pox varicella virus--one of the most highly contagious diseases known--rash lasts 2-3 wks--itching--
Common cold (blank)
Congenital rubella syndrome when a pregnant woman passes rubella virus to fetus during first trimester--any organs can be affected--eyes, brain, abdominal and thoracic organs, bone, etc.
Guillain-Barre syndrome risk that occurs rarely--1 in every million doses of flu vaccine-- sx--neural damage, paralysis, and coma
Hemagglutinin viral protein that attaches virus to ciliated epithelial cells in throat so virus can enter and kill cells--influenza virus
Influenza virus spreads from person to person in 2-3 days--fever, chills, headache, and muscle pains--cough develops and transmits virions--sx last 7-10 days--killed vaccine produced each year for expected antigenic types
Iron lungs large steel tanks--children condemned to live in--only machines available to provide a pressure change on chest to force breathing--poliovirus tx
Keratoconjunctivitis inflammation of the conjunctiva and the cornea of the eye
Koplik's spots reddish patches with white, salt crystal-like centers--first described by Dr. Henry Koplik--measles virus
Local epidemic both hemagglutinin and neuraminidase can change in small steps by mutation--happens on a yearly basis--influenza virus
Measles virus causes rubeola--7 day measles--most distinctive diagnostic sign is Koplik's spots--mild in most pts--highly contagious--vaccine developed in early 1960's
Mumps virus inflamation of the parotid gland (parotitis)--glandular orifice swells shut, fills with saliva, becomes tight and tender--chewing becomes painful--testes can become infected (orchitits) and sterility can occur--live attenuated vaccine developed in 1967
Neuraminidase surface viral protein that breaks down the protective mucous layer that lines the throat--influenza virux
Poliovirus tiny RNA virus that infects the alimentary canal--invades neurons in spinal column--causes poliomyelitis--transmitted in water or food-initial infection in adenoids/lymphatic tissue intestinal tract--sometimes spread via bloodstream to meninges-
Respiratory syncytial virus causes a serious infection of lower resp. tract in young children--spread in infant ward-tx ribavirin via resperator--infected seperated--induces syncytia
Reye's syndrome children under 17 given ASA get this
Rhinovirus cause 50% of common colds--people have 3-5 infections/year--no fever--spread via resp aerosols produced b coughing/sneezing--grow at cool temps of nose--do not invade via bloodstream--headache/sore throat/runny nose
Rubella virus causes 3 day measles/German measles--red rash lasts 3 days less pronounced than the measles rash--vaccine
Rubeola caused by measles virus
Sabin vacine live attenuated--kills polio virus
Salk vaccine killed vaccine--eliminated polio virus
Shingles caused by zoster virus--reccurent disease of chicken pox--painful neuralgia--lasts 3-5 weeks--comes from cranial nuerons--rash appears where that neuron enervates skin on one side of face or body--facial paralysis can result--pain meds needed
Syncytia caused by respiratory syncytial virus--causes infected cells to fuse together
Created by: heatherlvn
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