Escherichia coli (E. coli) is one of several types of bacteria that normally inhabit the intestine of humans and animals. Some strains of E. coli are capable of causing disease.
Giardia is the name of a genus of microscopic parasites that causes the intestinal disease giardiasis. Giardia live in the intestines of humans and other mammals, including dogs and cats.
H. pylori is a gram-negative, spiral-shaped bacterium that is the main cause of peptic ulcer disease, and has been linked to various cancers of the stomach.
The human immunodeficiency virus (HIV) is the virus that causes AIDS (acquired immune deficiency syndrome), a disease that disables the immune system leaving victims susceptible to other infectious diseases that can prove fatal.
The human parainfluenza virus (HPIV) causes respiratory illness in humans, especially in young children. It is a main cause of croup, bronchiolitis, and pneumonia.
Pneumocystis jirovecii is a fungus that causes Pneumocystis pneumonia (PCP), a lung infection that occurs primarily in people with weakened immune systems.
Rabies is a disease of the central nervous system that causes inflammation of the brain and muscle spasms, and is generally fatal if untreated. It is transmitted through saliva in the bites of infected animals.
S. epidermidis is a Gram-positive bacterium that is found on human skin and mucous membranes. It has become a common cause of infections acquired in hospitals.
