Primary complex and B.C.G. vaccination
Bhushan, Kul (1978) Primary complex and B.C.G. vaccination. Other. National Insitute of Tuberculosis, Bangalore, India.
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Lodgement or implantation of tubercle bacilli, at any site, in the body of an animal or human being is called the primary infection. The tissue response, consisting of mainly the polymorphonuclear leucocytic accumulation, to begin with, at the site of primary infection is termed as primary focus. The tubercle bacilli from the primary focus are soon transported along the lymphatics to the regional draining lymph nodes, causing inflammatory response both in the lymphatics, where tiny nodular foramations occur, and in the lymph nodes which enlarge. The primary focus, the lymphangitis and regional lymphadenitis together constitute primary complex.
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