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The enormosity of infectious diseases continues to be a major constraint to the economical viability of livestock industry. Combined vaccines against more than one infectious disease reduce the cost, time, and labour of vaccination. In present study, formalized vaccines against Haemorrhagic Septicaemia and Black Quarter diseases were prepared using P52 strain of Pasteurella multocida and Clostridium chauvoei strain 49. Different proportions of these two vaccines were mixed to formulate various groups of combined vaccines, which were subsequently standardized for sterility, safety and potency. |
