Viral hemorrhagic fevers (VHFs) refer to a group of illnesses that are caused by several distinct families of viruses. In general, the term "viral hemorrhagic fever" is used to describe a severe multisystem syndrome (multisystem in that multiple organ systems in the body are affected). Characteristically, the overall vascular system is damaged, and the body's ability to regulate itself is impaired. These symptoms are often accompanied by hemorrhage (bleeding); however, the bleeding is itself rarely life-threatening. While some types of hemorrhagic fever viruses can cause relatively mild illnesses, many of these viruses cause severe, life-threatening disease.
Ticks as small as a freckle can transmit a number of illnesses for which there is no vaccine and, in some cases, no cure. These creatures even could become bioterrorism weapons.
A new book published by the Pan American Health Organization (PAHO) predicts that the 21st century will become the "century of vaccines" thanks to rapid developments in the field of immunization.
As people remake the world's landscapes, cutting forests, draining wetlands, building roads and dams, and pushing the margins of cities ever outward, infectious diseases are gaining new toeholds, cropping up in new places and new hosts, and posing an ever-increasing risk to human and animal health.
The Philippines Department of Health (DOH) today reported that a total of 2,332 dengue cases has been admitted to sentinel hospitals nationwide from January 1 to May 15 this year. There were sixteen deaths recorded.
Medical Services International Inc. has announced that it has been requested to ship VScan Dengue Fever test kits to Hong Kong immediately.
The 21st century is shaping up to be the "century of vaccines," as vaccine developers make striking progress against both emerging and longstanding diseases, according to Vaccines: Preventing Diseases and Protecting Health, from the Pan American Health Organization (PAHO).
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