"Beta-hemolytic streptococci produce a toxin that forms a clear zone of hemolysis on blood agar, demonstrating its ability to destroy red blood cells" (Charlotte). ... "Streptolysins can destroy not only red blood cells, but also the white blood cells responsible for fighting off bacteria and disease, as well as other body cells" (Funke, Charlotte). ... After the discoloration, a formation of blisters with yellow fluid begin to form over the fascia. ... In some cases S.pyogenes is able to lower the incubation period "into 2 to 4 days" by affecting the blood flow ...

• Word Count: 1124
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

A person by the name of Franciscus de la Boe, better known as Dr. Silvius became the first person to be associated with Tuberculosis. Tuberculosis is a disease that is has been around for more than 5000 years. The disease developed into the plague in the Western civilization and became the number ...

• Word Count: 1898
• Approx Pages: 8
• Has Bibliography
• Grade Level: High School

As Cowan explains, cell bodies called lymphocytes (better known as white blood cells) will first, recognize a pathogen and send signals out to other lymphocytes to aid in the destruction of the pathogen. ... These B and T cells remain in the blood stream for years, thus, preventing that particular pathogen from causing disease in the future (2). ... Additionally, Guinea Worm Disease (GWD) is a parasitic infection that causes painful blisters in which parasitic worms, sometime up to one meter in length, emerge. ...

• Word Count: 3045
• Approx Pages: 12
• Has Bibliography
• Grade Level: Undergraduate