The animals get sick and recover within three to four days. three months later, try to reinfect the same animals with the same agent with no success. To conclude about the animals' defense to this new agent is a pathogen
A pathogen is an organism that causes disease and is able to trigger an immunological response in other creatures. Viruses, bacteria, and nematodes are examples of organisms that can behave as pathogens.Various tests have been run to identify the infectious agent. The animals are protected against illness through trypsin digestion. Given that protein digestion interferes with an organism's ability to spread disease, the infectious agent must therefore be a protein
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