Difference between Pathogen and Parasite: We all know germs are everywhere on our hands, air, and surfaces. Some of these germs are harmless, while others can make us sick. So what’s the difference between a pathogen and a parasite? What is a Pathogen? Difference between Pathogen and Parasite: A pathogen is a microorganism that can cause disease. Pathogens can be bacteria, viruses, fungi, or protozoa. They can … Continue reading What is the Difference between Pathogen and Parasite?