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 theory well as increasing the likelihood that talk will generate a potentially viral effect–spreading inoculation to others through the act of vocal talk (Ivanov et al., 2012). Inoculation theory Inoculation theory was developed by social psychologist William J. McGuire in 1961 to explain how attitudes and beliefs change, and more importantly, how to keep existing attitudes and beliefs consistent in the face of attempts to change them. Inoculation theory functions as a strategy to protect attitudes from change–to confer resistance to counter-attitudinal influences, whether such influences take the form of direct attacks or sustained pressures. The theory posits that weak counterarguments–arguments