Microreview48(Chlamydia And Rickettsia)

Front 1

Which bacteria are obligate intracellular parasites?

Back 1

Chlamydia and Rickettsia

Front 2

How are Chlamydia and Rickettsia cultured?

Back 2

In living cells. Rickettsia and Chlamydia cannot be cultured on nonliving media because they need to steal ATP from living cells to survive.

Front 3

During its life cycle, Chlamydia exists in 2 forms, the elementary and reticulate bodies. Which one is the extracellular, infectious body and which one is the intracellular, dividing body?

Back 3

Elementary body is extracellulay and infectious. The reticulate body is intracellular and dividing.

Front 4

What disease is caused by Chlamydia trachomatis serotypes A, B, and C?

Back 4

Trachoma, a chronic conjunctivitis that can lead to cornral scarring(most common cause of preventable blindness worldwide)

Front 5

What diseases are caused by Chlamydial trachomatis serotypes D-K?

Back 5

Nongonococcal urethritis(men) and cervicitis, both sexually transmitted.
Inclusion conjunctivitis(newborns) and infant pneumonia, both transmitted during delivery through infected birth canals.

Front 6

Serotypes L1, L2 and L3 of Chlamydia trachomatis cause what diseases?

Back 6

Lymphogranuloma venereum(LGV)

Front 7

What is the most common bacterial sexually transmitted disease?

Back 7

Urethritis caused by C. trachomatis.

Front 8

What is pelvic inflammatory disease?

Back 8

A sequela of cervicitis due to C. trachomatis(Neisseria gonorrhea) infection. Spread of the infection to the fallopian tubes and ovaries leads to fallopian tube scarring and ectopic pregnancy.

Front 9

What disease is caused by Chlamydia psittaci?

Back 9

Psittacosis, an atypical pneumonia occurring after exposure to infected birds.

Front 10

What disease is caused by Chlamydia pneumoniae?

Back 10

Atypical pneumonia(gradual onset of fever and nonproductive cough)

Front 11

How are Chlamydia infections treated?

Back 11

Tetracycline, doxycycline,erythromycin,azithromycin