Viruses Microbes

Sunday, November 22, 2009

Treatment Guidance on Getting Bird Flu

What should to do if getting of new srain flu virus H1N1 (strain Mexico)
  1. The Government will make an announcement in the event of outbreaks.
  2. Following government instructions via radio, television and other media.
  3. Use a mask or other masks.
  4. Practice patterns and use a clean life cover mouth and nose when sneezing and coughing.
  5. Avoid public places.
The Step Prevention from New Flu:
  1. Wash hands with clean water as often as possible when the hand touched a runny nose or other filth before and after meals. Take care of personal hygiene and the environment around you.
  2. When clean and cough, cover it with a tissue and dispose in the garbage the tissue. Keep at least 1 m distance with others, especially if having flu. Do not through away waste in everywhere.
Coughs, Colds and Flu Fever is not necessarily normal

Times have changed, everything changed, as well as the disease is changing. Now comes of new flu strains (Mexico strains), this type of flu hit the U.S., Europe and parts of Asia.

The Symptoms of Flu
  1. Fever with body temperature above 38oC
  2. Cough, runny nose
  3. Sore throat
  4. Tired, sluggish
  5. May be accompanied by nausea, vomiting and diarrhea
  6. If more severe symptoms, it will be accompanied by shortness of breath or heavy breathing.

Sunday, November 15, 2009

Yellow Fever

Some result of experiment says that their findings bear directly on ideas which are developed in this communication. Thus in their now classic studies with human volunteers, which proved the correctness of the theory that yellow fever was transmitted by the bite of an Aedes mosquito, they made the following observations. Mosquitos become infective when they had the disease. Mosquitos did not become infective when they bit early in the incubation period or late in the disease. Mosquitos were not infective soon after they had bitten and become so only after a period of 12 days of more. They then remained infective for life. These findings, so puzzling at the time, are now fully understood. Each can be explained on the basis of modern knowledge of virus reproduction and the result thereof.

Yellow fever is still one of the most classic of the virus diseases of man, and it may be rewarding to review its pathogenesis briefly. When an infected mosquito bites, a very small amount of yellow fever virus is introduced into the blood. This small amount of virus then promptly dissapears. The virus does not reappear in the peripheral blood until just before the disease develops. Therefore, normal mosquitos biting during the four-day incubation period do not take in virus. However, during the incubation period, the virus is undergoing reproduction in cells, of the liver and other organs. When the number of cells damaged by the reproductive process becomes large enough, symptoms and signs of yellow fever rapidly appear. At about this time large numbers of newly formed virus particles are released from the infected tissues into the blood. Now, if a mosquito bites, it will take in virus.

As the disease progresses, still higher concentrations of virus develop in the liver, lyph nodes, and kidneys. This is the result of continued virus reproduction. In parallel, the concentration of virus in the blood increases rapidly and may reach a level of 10 particles per ml. If a mosquito bites at this time. It will take in considerable amount of virus. After about fourth day of disease, neutralizing antibodies begin to appear, and as they increase in concentration, the number of infective virus particles in the body rapidly decrease, and the disease a biting mosquito fails to take in any infective virus and so cannot transmit to agent.

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