Microbiology Final Chapter 24

Front 1

Chronic infections

Back 1

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.

Front 2

oncogenic

Back 2

a naturally occurring type of gene that when activated can transform a normal cell into a cancer cell

Front 3

teratogenic

Back 3

causing abnormal fetal development

Front 4

pox

Back 4

the thick, elevated pustular eruptions of various viral infections.

Front 5

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

Back 6

disease caused by infection with variola virus.

Front 7

molluscum contagiosum

Back 7

poxvirus-caused disease which manifests itself by the appearance of small lesions on the face, trunk and limbs. often associated with sexual transmission.

Front 8

varicella-zoster virus

Back 8

herpesvirus responsible for the disease chickenpox and shingles.

Front 9

shingles (zoster)

Back 9

a skin condition occurring on the trunk or head that is caused by the reactivation of a latent varicella-zoster virus.

Front 10

Epstein-Barr virus

Back 10

herpesvirus linked to infectious mononucleosis, burkitts lymphoma and nasopharyngeal carcinoma.

Front 11

nasopharyngeal carcinoma

Back 11

a malignancy of epithelial cells that occurs in older Chinese and African men and is associated with exposure to Epstein-Barr virus

Front 12

Roseola

Back 12

Disease of infancy, usually self-limiting caused by infection with human herpesvirus-6 & 7

Front 13

Hepatitis B virus

Back 13

hepadnavirus that is the causative agent of serum hepatitis

Front 14

jaundice

Back 14

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

Front 15

keratoconjunctivitis

Back 15

inflammation of the conjunctiva and cornea. ADENOVIRUS (nonenveloped)

Front 16

human papillomavirus

Back 16

a group of DNA viruses whose members are responsible for common, plantar and genital warts. (nonenveloped)

Front 17

Wart

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papilloma; benign, squamous epithelial growth; painless, elevated rough growths on the fingers or ocassionally other parts of the body.

Front 18

plantar warts

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deep, painful warts on the soles of the feet as a result of infection by human papillomavirus

Front 19

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

Front 20

condylomata acuminata

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extensive, branched masses of genital warts caused by infection with human papillomavirus

Front 21

progressive multifocal leukoencephalophathy

Back 21

an uncommon, fatal complication of infection with JC virus (polyoma virus)

Front 22

erythema

Back 22

an inflammatory redness of the skin

Front 23

persistent infections

Back 23

they can last for many years and sometimes for life.

Front 24

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.

Front 25

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.

Front 27

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)

Front 28

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

Front 29

whitlow

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an abscess on the distal portion of a finger.

Front 30

Burtkitt lymphoma

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is a B cell malignancy that usually develops in the jaw and grossly swells the cheek.

Front 31

infectious mononucleosis

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lympathic disease (Epstein-Barr virus)

Front 32

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)

Front 33

hepatitis

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an inflammatory disease marked by necrosis of hepatocytes and a mononuclear response that swells and disrupts the liver architecture

Front 34

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.

Front 36

adenovirus

Back 36

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.

Front 37

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.

Front 38

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

Front 39

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)