What does it mean to be a pathogenic organism?

Is an organism capable of causing disease in its host. A human pathogen is capable of causing illness in humans. Common examples of pathogenic organisms include specific strains of bacteria like Salmonella, Listeria and E. coli, and viruses such as Cryptosporidium.

Well if you want to be it a start spreading different types of disease that you are not aware of and that might hurt or even kill a person then you can be a pathogenic organism. But in order to stop if you will have to use a cure.

Treatment and health care. Bacteria are usually treated with antibiotics while viruses are treated with antiviral compounds. Eukaryotic pathogens are typically not susceptible to antibiotics and thus need specific drugs. Infection with many pathogens can be prevented by immunization

A pathogenic organism is an organism that is a pathogen (a disease-causing agent). In this case, the infectious agent does harm to its host.

I am sorry to write this short answer but its very simple to understand. Hope this helps!!!