4/27/2008

BCG vaccination will be after a TB?

BCG vaccination: BCG (Bacillus of Calmette and Guerin, BCG) is living the virulence of bovine tuberculosis vaccine. BCG vaccination can produce the body of the guitar tuberculosis acquired immunity. Vaccination target is not infected people, mainly babies, children and adolescents. Have been infected by TB (node-positive test) would not have vaccination, or sometimes have some degree of response (Koch phenomenon, namely, the body of Mycobacterium tuberculosis infection and the initial infection again demonstrated by the reaction of the different phenomena) .
Inoculation method: liquid vaccine will be valid for 4-6 weeks, freeze-dried vaccine is valid for one year. Vaccine should be of sufficient quantity viable. Therefore, the vaccine should be in the low-temperature (2-10 ℃) and the dark under the conditions of transportation, preservation ( "cold chain"); the use of expired vaccines. Inoculation site should be left upper arm from the outer edge of the bottom of the deltoid muscle. Common skin injection, after inoculation guitar-positive rate as high as 90 percent.
Vaccination response: 2-3 weeks after the BCG vaccination, a local general swelling, Pokui, often in a few weeks to Jiejia recovered.
Note: BCG vaccination The purpose is to enable access to the human body's immunity to the combination of bacilli, but this is not perpetuating the immunity. BCG immunization is "viable immune." After inoculation, with the living bacteria in the human body gradually reduced immunity also will be reduced, the next few years in response to negative statements have multiple cropping. Replanting targets for urban and rural areas in the 7-year-old, 12-year-old children in rural areas. BCG and therefore can not prevent infection, BCG vaccination is still possible after a tuberculosis, which is not saying that BCG vaccination is not necessary » Of course not. First, the BCG vaccination can significantly reduce the incidence rate of tuberculosis, neonatal and infant BCG vaccination, immunization than not have the same age group to reduce TB incidence rate of about 80 percent of its protection force to maintain five to ten years. Secondly, it can significantly reduce the incidence of TB symptoms.
BCG vaccination for TB is the only practical means of protection initiative, the BCG vaccination is very important.

No comments: