Spirochaetes

1
Spirochaetes

• and Borreliae

2
Borrelia duttoni

• Spirochaetes with coarse irregular spirals in
  thick blood smear (Giemsa stain).

3
Borrelia duttoni

• The spirochaetes in a thick blood smear are
  sometimes very slender (Giemsa stain).

4
Borrelia duttoni

• Spiral bacteria in a thin blood smear
  (May-Grünwald Giemsa stain).

5
Borrelia hispanicum

• Slender spiral bacteria in a thin blood smear
  (May-Grünwald Giemsa stain).

6
Genital spirochetes

• Several spirochetes and Gram-negative rods in a
  vaginal smear (Gram stain).

7
Treponema pallidum

• In exudate from an indurated chancre (
  Fontana-Tribondeau stain).

8
(No Transcript)