BCG vaccine BCG was adopted by the Health Committee of the League of Nations (predecessor to the WHO). Because of opposition, however, it only became widely used after World War II. From 1945 to 1948, relief organizations (International Tuberculosis Campaign or Joint Enterprises) vaccinated over 8 million babies in eastern Europe and prevented the predicted typical increase of TB after a major war. BCG is very efficacious against tuberculous meningitis in the pediatric age group, but its efficacy against pulmonary tuberculosis appears to be variable. As of 2006, only a few countries do not use BCG for routine vaccination. Two countries that
Inoculation needle culture. Too much heat will kill off the inoculum during the direct contact of a flamed inoculation needle. The inoculation needle is withdrawn from the agar culture after obtaining a small colony and the agar plate lid is then replaced. Inoculation of the microorganisms will be done directly after the transfer from culture to inoculation needle. The inoculum is commonly inoculated to broth cultures, slant cultures, plate cultures, and stab cultures. An inoculation needle is used in inoculating a sterile broth culture. Flaming the open end of the broth will keep the it sterile. The broth will be moved up