43 - STDs I - Chlamydia and Gonorrhea Flashcards
Most common Chlamydia infection
Chlamydia trachomatis
Chlamydia and Chlamydophila features
Small cocci
Obligate intracellular pathogen
Gram-negative-like wall (NO peptidoglycan)
Chlamydia forms
Elementary body
Reticulate body
Chlamydia elementary body features
Rigid cell wall
Infectious
Extracellular survival
Chlamydia reticulate body features
Fragile cell wall
Non-infectious
Intracellular growth
Clinical presentation for Chlamydia trachomatis
Eye infections
UG infections
C. trachomatis diseases
Trachoma
Inclusion conjunctivitis
STI/UG infections
LGV
Infant pneumonia
C. trachomatis serovars
Many, based on Ag differences in MOMP
C. trachomatis serovars that cause trachoma
A, B, Ba, C
C. trachomatis serovars that cause UG tract disease
D-K
C. trachomatis serovars that cause LGV
L1, L2, L2a, L2b, L3
What is the leading cause of preventable blindness in the world?
Chronic Chlamydia conjunctivitis
What is the most common STD in the U.S.?
C. trachomatis
C. trachomatis UG infections in men
Symptomatic
Dysuria
Mucopurulent discharge
May progress to Reiter syndrome
Reiter syndrome
Urethritis
Conjunctivitis
Polyarthritis