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39 Cards in this Set
- Front
- Back
Chronic infections
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any process or disease that persists over a long duration; viruses are detectable in tissue samples and is still multiplying at a slow rate, but symptoms of infection are usually mild or absent.
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oncogenic
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a naturally occurring type of gene that when activated can transform a normal cell into a cancer cell
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teratogenic
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causing abnormal fetal development
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pox
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the thick, elevated pustular eruptions of various viral infections.
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variolation
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a hazardous, outmoded process of deliberately introducing smallpox material scraped from a victim into the nonimmune subject in the hope of inducing resistance
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smallpox
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disease caused by infection with variola virus.
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molluscum contagiosum
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poxvirus-caused disease which manifests itself by the appearance of small lesions on the face, trunk and limbs. often associated with sexual transmission.
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varicella-zoster virus
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herpesvirus responsible for the disease chickenpox and shingles.
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shingles (zoster)
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a skin condition occurring on the trunk or head that is caused by the reactivation of a latent varicella-zoster virus.
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Epstein-Barr virus
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herpesvirus linked to infectious mononucleosis, burkitts lymphoma and nasopharyngeal carcinoma.
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nasopharyngeal carcinoma
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a malignancy of epithelial cells that occurs in older Chinese and African men and is associated with exposure to Epstein-Barr virus
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Roseola
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Disease of infancy, usually self-limiting caused by infection with human herpesvirus-6 & 7
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Hepatitis B virus
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hepadnavirus that is the causative agent of serum hepatitis
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jaundice
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yellowish pigmentation of skin, mucous membranes, sclera, deeper tissues, and excertions due to abnormal deposition of bile pigments. Associated with liver infections as with hep B and leptospirosis
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keratoconjunctivitis
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inflammation of the conjunctiva and cornea. ADENOVIRUS (nonenveloped)
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human papillomavirus
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a group of DNA viruses whose members are responsible for common, plantar and genital warts. (nonenveloped)
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Wart
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papilloma; benign, squamous epithelial growth; painless, elevated rough growths on the fingers or ocassionally other parts of the body.
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plantar warts
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deep, painful warts on the soles of the feet as a result of infection by human papillomavirus
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genital warts
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a prevalent STD linked to some forms of cancer of the reproductive organs. Caused by infection with human papillomavirus
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condylomata acuminata
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extensive, branched masses of genital warts caused by infection with human papillomavirus
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progressive multifocal leukoencephalophathy
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an uncommon, fatal complication of infection with JC virus (polyoma virus)
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erythema
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an inflammatory redness of the skin
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persistent infections
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they can last for many years and sometimes for life.
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latent infections
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result when the virus enters a dormant phase inside host cells and becomes inactive after a lytic infections. It is not multiplying, generally not detectable, and does not cause symptoms during latency.
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herpes simplex 1
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usually characterized by lesions on the orpharynx (on face, mouth)
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herpes simplex 2
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usually producing lesions on the genitalia.
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herpesviruses
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were named for the tendency of some herpes infections to produce a rash that spreads (creeps). (HSV 1&2, varicella-zoster virus, cytomegalovirus, epstein barr, HHV 6&7, herpesvirus 8)
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cytomegalovirus
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they tend to produce giant cells with nuclear and cytoplasmic inclusions, which infects the salivary glands and other viscera, mononucleosis
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whitlow
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an abscess on the distal portion of a finger.
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Burtkitt lymphoma
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is a B cell malignancy that usually develops in the jaw and grossly swells the cheek.
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infectious mononucleosis
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lympathic disease (Epstein-Barr virus)
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HHV-6
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also knows as human B-lymphotropic virus, this virus enter and replicate in T lymphocytes, macrophages, and salivary gland tissues. causes Roseola (acute febrile disease)
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hepatitis
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an inflammatory disease marked by necrosis of hepatocytes and a mononuclear response that swells and disrupts the liver architecture
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hepadnaviruses
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these enveloped DNA viruses involved in hepatitis.. have never been frown in tissue culture and have an unusual genome containing both double and single stranded. Also shows a tropism for the liver, where they persist and usually trigger liver cell carcinoma.
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hepatocellular carcinoma
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a primary malignant growth of hepatocytes...- is based on these observations: certain hepatitis B antigens are found in malignant cells, persistent carriers of the virus are more likely to develop cancer, and people from areas of the world with a high incidence of hep B are more frequently affected.
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adenovirus
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adenoids (a lymphoid tissue in the nasopharynx that sometimes become enlarged. Besides infecting lymphoid tissue, adenoviruses have a preference for the respiratory and intestinal epithelia and the conjunctiva.
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herpes keratitis
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also called ocular herpes is an infective inflammation of the eye in which a latent virus travels into the ophtalmic rather than the mandibular branch of the trigeminal nerve.
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hep A virus
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is a nonenveloped RNA enterovirus transmitted through contaminated food. is far milder, shorter term, and less virulent than the other forms
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hep C virus
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flavivirus that causes many cases of transfusion hepatitis. is involved in a chronic liver infection that can go undiagnosed, later leading to severe liver damage cancer. It is spread primarily by exposure to blood and blood products. (unreported hep)
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