Archive for the ‘Vaccination’ Category
Boys who (also) in boys have increased risk of infection are: GGD start vaccination campaign to protect
In Amsterdam, one in five gay or bi-men chance to walk hepatitis B through sexual contact. Therefore launches the GGD Amsterdam during the week a special nationwide hepatitis vaccination campaign: The Wednesday Night Special. Boys between 16 and 24 years who (also) in boys may attain from January 20 every Wednesday at the GGD find a free vaccination against hepatitis A and B. Read the rest of this entry »
“It is not generally known that pneumonia and diarrhea world’s two biggest killers of children and that it is possible to vaccinate against the main causes of these diseases,” said Mickey Chopra of the United Nations Children UNICEF.
Wednesday published the New England Journal of Medicine a report on the positive effects of vaccination against Rotavirus in Africa and Mexico. Read the rest of this entry »
A vaccine is a drug consisting of all or part of an infectious agent. The infectious agent may be bacteria, viruses, parasites.
Administered orally or by injection, it will stimulate the immune reactions of the body so that it will then defend against the microbe itself.
- Either the whole microbe. In this case, the microbe is killed and unable to infect the body. What are its components that will cause the immune defense reaction.
- Either the whole microbe that was just reduced by special treatment and is now therefore not virulent. The body immediately antibodies against the microbe. The problem is that it can become virulent among those whose defenses are weakened.
- Either a component of the microbe (fragment of the capsule of the virus for example), or an enzyme closely related to the capsule, which has been identified as an antigen stimulating strong immune responses.
How does it happen?
- Whether the vaccine stimulates the cells of cellular immunity, which keep the memory and will attack more strongly the microbe during a subsequent contact. This is the case for example of BCG.
- Whether the vaccine stimulates receptors on B cells that produce antibodies. In a subsequent contact, production of antibodies is more rapid and intense, preventing disease development.