Wednesday, January 28, 2009

Biodefense and Bioterrorism

Terrorism refers to the use or threat of force or violence against people or property. A bioterrorist attack releases viruses, bacteria, or other germs to cause illness or death. These biological agents are typically found in nature. But they can sometimes be made more harmful by increasing their ability to cause or spread disease, or to resist medical treatment.

Biological agents spread through the air, water or in food. They can be very hard to detect, and they don't cause illness for several hours or days. Some agents can also be spread from person to person. Scientists worry that anthrax, botulism, hemorrhagic fever viruses such as Ebola, plague, or smallpox could be used as biological agents.

Biodefense involves medical measures to protect people against biological agents. This means medicines and vaccinations. It also means medical research and preparations to defend against bioterrorist attacks.

Wednesday, January 14, 2009

Marijuana

Marijuana is a dry, shredded mix of flowers, stems, seeds and leaves of the hemp plant Cannabis sativa. People usually smoke it as a cigarette or in a pipe. It is the most commonly abused illegal drug in the United States.

Abusing marijuana can result in problems with memory, learning and social behavior. It can interfere with family, school, work and other activities.

Scientific studies are underway to test the safety and usefulness of cannabis compounds for treating certain medical conditions. Currently, smoking marijuana is not recommended for the treatment of any disease or condition.

Wednesday, January 7, 2009

Medicare

Medicare is the U.S. government's health insurance program for people age 65 or older. Certain people under age 65 can qualify for Medicare, too, including those with disabilities, permanent kidney failure or amyotrophic lateral sclerosis.

Medicare helps with the cost of health care, but it does not cover all medical expenses or the cost of most long-term care. The program has four parts:

* Part A is hospital insurance.
* Part B helps pay for medical services that Part A doesn't cover.
* Part C is called Medicare Advantage. If you have Parts A and B, you can choose this option to receive all of your health care through a provider organization, like an HMO.
* Part D is prescription drug coverage. It helps pay for some medicines.