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Which bacterial infection is primarily associated with Bacilli?

  1. Syphilis

  2. Strep throat

  3. Tuberculosis

  4. Pneumonia

The correct answer is: Tuberculosis

Bacilli are rod-shaped bacteria, and their structure plays a significant role in the characteristics and infections they cause. Tuberculosis is primarily associated with Mycobacterium tuberculosis, a type of bacillus that can survive in harsh conditions and is resistant to many common treatments. This infection primarily affects the lungs but can also impact other areas of the body. In contrast, syphilis is caused by Treponema pallidum, which is a spirochete rather than a bacillus. Strep throat is caused by Streptococcus pyogenes, which is spherical (coccus) in shape, and pneumonia can be caused by a variety of organisms, including cocci like Streptococcus pneumoniae as well as other bacteria. The rod shape of bacilli makes tuberculosis the correct association in this context.