ScienceIQ.com

Medicine Facts

What Is Sickle Cell Anemia?

Sickle cell anemia is an inherited blood disease. That means you are born with it and it lasts a lifetime. Sickle cell anemia affects the red blood cells. Normal red blood cells are smooth and round ... Continue reading

The sickle-shaped red blood cells tend to get stuck in narrow blood vessels, blocking the flow of blood.

Who was Typhoid Mary?

Mary Mallon lived in New York about 100 years ago, and worked as a cook. It seemed that every family she worked for suffered an outbreak of typhoid fever! The Dept. of Public Health found that she ... Continue reading

Pictured is a close up of Salmonella Typhosus.

Malaria and Sickle Cell Anemia

Sickle cell anemia is a genetic disorder in which the red blood cells collapse into a 'sickle' shape and cannot carry oxygen very well. They also tend to get stuck in narrow blood vessels, causing ... Continue reading

The Plague

Plague is an infectious disease caused by the bacterium Yersinia pestis. The bacterium is found mainly in rodents, particularly rats, and in the fleas that feed on them. Other animals and humans ... Continue reading

Prairie dogs sometimes carry plague.