Question

Koch observed bacillus anthracis multiplying in the blood of cattle. what is the condition specifically called when pathogens multiply in the blood?

Answer 1

Answer;
Septicemia
The condition where pathogens multiply in the blood is called Septicemia.

Explanation; 
Septicemia refers to an infection of the blood that results from the presence of pathogens such as bacteria in the blood. The onset is signaled by a high fever, chills, weakness, and excessive sweating which follows a decrease in blood pressure.