Flashcards in Chapter 13 Deck (52)
3 diseases caused by Chlamydial infection
Chlamydial urethritis, Lymphogranuloma venereum, Trachoma
3 diseases caused by Ricketsial infection
Rochey mountain spotted fever, Q fever, Typhus Fever
What kind of parasite is Chlamydiae
obligate intracellular parasites
Can Chlamydiae make their own ATP
What does Chlamydiae infect?
epithelial cells of skin and mucous membranes
Chlamydiae replication cycle
spore like metabolically inert Elementary bodies enter the cell, become metabolically active, reticulate body, undergo repeated binary fission, burst and release daughter elementary body
3 types of Chlamydiae
Ch. Psittaci, Ch. Pneumoniae, Ch. Trachomatis
How do you get a Ch. Psittaci infection?
bird's disease- inhalation of dried bird's feces causes human infection, fever and pneumonia
How do you get a Ch. Pneumoniae infection?
communicable by aerosol- causes a typical pneumonia in humans
How do you get a Ch. Trachomatis infection?
only in humans- causes trachoma, genital tract infection, lymphogranuloma venereum
What is trachoma?
chronic infection of conjunctival mucous membrane- common in Africa and Asia- transmitted by fomites and fingers
Who is trachoma highly contagious in?
children- transmitted by fomites and fingers
What does late stage trachoma cause?
scarring of conjunctiva and opacities in cornea resulting in blindness
What does Type D-K chlamydiae cause?
STD of infection through birth canal- world wide distribution- occurs in higher socio-economic group
What does Chlamydial infection cause in new borns?
acute purulent conjunctivitis
What does Chlamydial infection cause in adult males?
urethritis which may progress to epidedymitis, proctitis or prostitis
What does Chlamydial infection cause in adult women?
causes cervicitis (inflammation of cervix) may progress to salphingitis @ PID often sterility/ectopic gestation
What syndrome may patients with genital tract infection develop?
What does Ch. Trachomatis L group cause?
lymphogranuloma venereum (LGV)
What does LGV cause?
painful ulcers on genitals with inguinal node enlargement, no immunity
Lab diagnosis of chlamydial infection?
cause characteristic inclusion bodies in cells- Giemsa stain is used to stain urethral/conjunctival smears to demonstrate infection
Tests for lab diagnosis of chlamydial infection?
immunolflourescent test, DNA probe, ELISA
What treatment are all chlamydial infections susceptible to?
Treatment of chlamydial infection STDS
Treatment of Chlamydial ophthalmia neonatorum
Prevention for Chamydia
no vaccination, erythromycin drops for new borns
Define Reiter's syndrome
an autoimmune condition that develops in response to an infection in a part of the body
Symptoms of Reiter's Syndrome
an inflammatory arthritis of large joints, inflammation of the eyes, urethritis
How is reactive arthritis (reiters syndrome) transmitted?
transmitted through sexual transmitted diseases