A virus is an ultramicroscopic infectious organism that, having no independent metabolic activity, can replicate only within a cell of another host organism. A virus consists of a core of nucleic acid, either RNA or DNA, surrounded by a coating of antigenic protein and sometimes a lipid layer surr...

âHantavirus Pulmonary Syndrome (HPS) HPS is a virus and an infectious respiratory disease caused by the Hantavirus, a Biosafety Level 4 pathogen, which could probably be found in your own back yard. Without the proper care, HPS is a typically fatal. This "hantavirus" belongs a group...

The Ebola Virus Disease is one of the only monsters left in our world today. While other mysteries have been solved, conquered and done away with, disease still afflicts people today. Among the many illnesses that afflict our world, those most damaging are usually caused by viruses. Included in t...

Diseases E. coli are germs that normally live the intestines of people and animals. The most common symptoms are severe stomach cramps and diarrhea. E. coli lives in the intestines of healthy cattle and can get into the meat when cattle are slaughtered. The germs are killed whe...

Mononucleosis Mononucleosis is an infectious disease found in humans, in which the blood and tissues contain mononuclear leukocytes. These are white blood cells with only one nucleus, either monocytes or lymphocytes. An infectious disease is a disease that can give you an infec...