BCG vaccine of 2004 the vaccine is given to about 100 million children per year globally. The main use of BCG is for vaccination against tuberculosis. BCG vaccine can be administered after birth intradermally. BCG vaccination can cause a false positive Mantoux test, although a very high-grade reading is usually due to active disease. The most controversial aspect of BCG is the variable efficacy found in different clinical trials, which appears to depend on geography. Trials conducted in the UK have consistently shown a protective effect of 60 to 80%, but those conducted elsewhere have shown no protective effect, and efficacy appears
Inoculation needle to the needle so that the needle tip is submerged while maintaining the needle's original position. Careful swirling of the needle can help the inoculation of the microorganism from the needle to the sterile broth. The inoculated broth culture is then removed from the needle. Aseptic technique is applied to the open end of the broth culture to prevent contaminants, and the needle is flamed for sterilization. An inoculation needle is used to inoculate a slant culture in a fish tail inoculation technique. After the microorganisms transfer from the original microbial culture to the inoculation needle the sterile slant culture