Abstract
Studies (5-11) have proved that experimental tuberculosis in guinea pigs can be suppressed or prevented during the period of isoniazid pro phylaxis, but, when treatment is discontinued, a varying number of animals develop progres sive tuberculosis. It has been demonstrated (8) that a percentage of the animals which do not develop allergy (immunity) or show any ap preciable sign of tuberculous disease during an observation period of two years varies inversely with the size of the challenge, and directly with the duration of the treatment. This experiment was designed primarily to determine the degree of protection against tuberculosis in guinea pigs which were vacci
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
