This section contains 1,696 words (approx. 6 pages at 300 words per page) |
Definition
Hemorrhagic fevers (pronounced heh-meh-RA-jik) are a group of diseases caused by viruses. They occur throughout the world, but are most common in tropical areas. Early symptoms include muscle aches and fevers. The disease can progress to a more serious condition and, in many cases, can be fatal. A prominent symptom in late stages is hemorrhaging (rapid or heavy bleeding) from body openings and internal organs.
Description
Hemorrhagic fevers are a growing concern throughout the world. They are not new diseases, but they are affecting much larger numbers of people every year.
The viruses that cause hemorrhagic fevers live in a great variety of animals, such as arthropods and mammals. Arthropods are insects, spiders, and other animals with hard external skeletons. These animals are called the natural reservoir for the disease. In many cases, these animals do not become ill when infected by the viruses. They...
This section contains 1,696 words (approx. 6 pages at 300 words per page) |