* Shape: Spirilla are spiral-shaped bacteria. Think of a corkscrew or a spring.
* Movement: They move using flagella, which are whip-like structures that rotate.
* Size: They are relatively large for bacteria, often visible under a light microscope.
Examples of Spirilla:
* Campylobacter jejuni: Causes food poisoning.
* Treponema pallidum: Causes syphilis.
* Leptospira interrogans: Causes leptospirosis, a disease spread through animal urine.
Important Note: While the singular form is "spirillum," the plural is "spirilla".
